MONACO -- Tire manufacturer Pirelli fears for its future in Formula One as time runs out to agree a new contract with teams for next season. Man City Home Kit 2016/17 . Pirelli is currently the sole supplier to F1 but faces a mammoth task in designing and preparing new tires for 2014 -- which sees significant changes to F1 regulations and car design -- if a new deal is not struck soon. "Apparently on the first of September we need to tell them (the teams) everything they need to know about the tires for next season," Hembery said after Thursdays second practice session at the Monaco Grand Prix. "But were now mid-May, so you can imagine how ludicrous that is when we havent even got a contract in place." Hembery would not disclose the deadline set internally for an agreement. "Maybe we wont be here (next year) anyway," he said. "At a certain point somebodys got to make a decision. Weve been trying to say that something needs to happen and quick." The Italian companys three-year contract with F1 expires at the end of 2013 and Hembery had hoped a new deal would already have been sealed. But the situation continues to drag on and motor sports governing body, the FIA, has yet to say if or when other manufacturers will be allowed to bid. "Things are getting, as far as we can see, extremely serious," Hembery said. "The changes next year are so substantial that the sport has to make a rapid decision, because aside from having the fixed resources in the business involved in F1, theres also the technical job." He added that "there comes a time where we will not have time to do the job any more" such is the complexity of next years switch from 2.4-litre V8 engines to turbo-charged 1.6-litre V6s. "Its not a case of maybe putting a harder compound onto thiIs years tires. The changes are so dramatic that we probably need to do a thorough re-engineering of the tire," Hembery said. "That takes time and the longer this goes on it makes our job impossible, and there comes a point where probably you say well, we dont have time to do the job." It has been a very difficult few weeks for Pirelli, which has faced severe criticism because its tires have been shredding too easily. Three-time defending champion Sebastian Vettel has been one of the most outspoken, complaining after the Spanish Grand Prix two weeks ago that tires were influencing races more than the pace of the cars. Vettel, who finished fourth in Barcelona, pointed up the recent problems when he spoke to reporters on Thursday. "When the majority of the drivers are struggling it means that you cannot drive as you are used to -- and probably this should be given a thought or two. If your only focus is the tires, then that is not racing any longer in the way that we knew. " The Spanish Grand Prix saw nearly 80 pit stops, with most drivers shelving plans for three stops and taking four because the tires were shredding too easily. Pirelli responded with a pledge to start making changes to their rear tires as from next months Canadian GP. While it remains to be seen what alterations will be made for Montreal, Hembery is optimistic an agreement can be reached with the 11 teams on that front at least. "Were very close to having an agreement with all the teams, which is really important," he said. "We want to get rid of the delamination that we found has been caused by cuts in the tire, debris-induced which creates a weak spot and overheating. Weve been able to replicate that now in our laboratories, and our internal testing, and we believe the solution we have will completely resolve that." Raheem Sterling Jersey Manchester City .com) - The game was all punts and field goals before Kodi Whitfields catch. Sergio Aguero Jersey . The quest begins with what is supposed to be an easy one, although Germany has traditionally been a stubborn opponent to Canadian teams at international tournaments. http://www.manchestercityfcshopuk.com/kevin-de-bruyne-authentic-jersey.html . - Blake Griffin had 30 points and 12 rebounds, J.What has Jurgen Klopp not done in his last 40 league games? And why should Spurs fear a late Chelsea goal? Martin Tyler has the answers - plus, hit the video to see his latest tricky teaser from Old Trafford.How to send your questions to Martin: Use the comments box at the bottom of this pageTweet @SkyFootball using the hashtag #TylersTeasersMartins Starting Stats from Man Utd v ArsenalOlivier Giroud became the first Arsenal player to score against a Jose Mourinho side since Gilberto Silva scored a penalty in a 1-1 draw against Chelsea in May 2007.Juan Matas opener meant Arsenal trailed for the first time away from home in the Premier League this season. They were behind for 21 minutes, to add to 52 minutes at home.Giroud helped Arsenal extend their unbeaten run to 17 games in all competitions and 11 in the Premier League. Their last away defeat in the Premier League was at Old Trafford on February 28. Watch highlights of Man Utd 1-1 Arsenal Mata, who had scored four goals in five games against Arsenal for Chelsea, scored his first goal in five appearances for Manchester United against Arsenal.Phil Jones made his first Premier League start at home since January 2, while Giroud hasnt started a league game this season. He still has three goals in his last three appearances as a substitute.United have now lost just one of their last 11 Premier League meetings with Arsenal and they are unbeaten in their last 10 home meetings with them in the league.Mourinho is unbeaten in all 12 Premier League games he has managed against Arsenal (W5 D7). Arsene Wenger has won just one of 16 matches against Mourinho (L8 D7 W1). The one win was the Community Shield in 2015. Sky Sports Black Friday sale Upgrade to Sky Sports now and get 12 months half price! Run of resultsChelsea won last 5 matches by scores of 1-0, 2-0, 3-0, 4-0, 5-0. How many times did that happen in PL history? @ChelseaHeroTomaMARTIN SAYS: According to our friends at Opta, Chelsea are actually the first team to achieve this quirky feat in the Premier League era.The run started with a 3-0 win over Leicester at Stamford Bridge, with Diego Costa, Eden Hazard and Victor Moses on the scoresheet. Watch highlights of Middlesbrough 0 - 1 Chelsea They then beat Manchester United 4-0, Southampton 2-0 and Everton 5-0, before Costas winner secured a 1-0 victory over Middlesbrough on Nissan Super Sunday.They face Spurs next at Stamford Bridge. A goalless draw or a 6-0 win keeps this stat alive!Leaving it lateTottenham always seem to score last-minute goals against West Ham. Has any team scored more against another PL team? CraigMARTIN SAYS: According to Opta, Harry Kanes late penalty against West Ham was Tottenhams sixth goal scored in the 90th minute or later against West Ham in the Premier League - their most against any single Premier League team.Kane (February 2015), Eric Dier (August 2014), Gareth Bale (February 2013), Jamie OHara (December 2008) and Darren Bent (May 2008) have also scored in the last minute for Spurs against West Ham.For Hammers fans it may feel like an all-too-often occurrence against their London rivals, but Tottenham themselves have a tormentor with an even great appetite for late goals. Watch highlights of Tottenham 3-2 West Ham They have conceded 10 times in the final minute or later against Chelsea, the joint highest number of goals in Premier League history.Food for thought for Mauricio Pochettino as he prepares his side to face the Blues at Stamford Bridge this weekend.Youll notice I said joint highest, though. Chelsea share top spot with Arsenal, who have also scored 10 goals from the 90th minute onwards against Aston Villa.Most 90th-minute goals in the Premier League v same opponent:Arssenal v Aston Villa (10 times)Chelsea v Tottenham (10 times)Arsenal v Leicester (9 times)Chelsea v Wigan (9 times)Liverpool v Arsenal (9 times)Staying the sameWhich PL team has gone the longest period of time without naming an unchanged line-up? Andrew FMARTIN SAYS: Chelsea and West Brom were the only teams to name an unchanged side last weekend. Raheem Sterling Youth Jersey. In fact, Antonio Conte has named the same starting XI for the last five matches.Most managers prefer to rotate, though, none more so than Jurgen Klopp.Liverpool have gone 40 matches without naming an unchanged line-up - more than double any other Premier League team.Klopp has only picked the same Liverpool line-up once, when the XI that started his first match in charge - a 0-0 draw at Tottenham - started again against Southampton a week later on October 25. Watch highlights of Southampton 0-0 Liverpool The Reds drew that game too before Klopp made one change for the trip to Stamford Bridge, bringing in Roberto Firmino for Divock Origi. A lot of those were due to injuries and the number of games they had last season. Klopp does have some continuity.Liverpool won the match 3-1 and since then the German has not looked back, making at least one alteration to his line-up every Premier League match-day, including against Southampton on Saturday.Five other teams have changed their line-up in every match this season. West Ham and Tottenham last named an unchanged line-up last April (15 league games ago). Sunderland last named an unchanged line-up in May (13 league games ago), as did Middlesbrough (12 league games) and Manchester City (12 league games).Wait for a braceHow long was the gap between Victor Anichebes Premier League braces and is it a record? MarshieMARTIN SAYS: Before his double for Sunderland against Hull, almost 10 years had passed since Victor Anchibes last Premier League brace.When Anchibe smashed home his second at the Stadium of Light on Saturday, he ended a 3,612 day wait since his last Premier League double.That came in December 2006 against Newcastle at Goodison Park as Anchibe scored twice in a 3-0 victory for Everton. Watch highlights of Sunderland 3-0 Hull But remarkably, Anchibes is not the longest gap between Premier League doubles.The record belongs to Damien Duff, who bagged two for Blackburn against West Ham in December 1997 and then, 4,823 days later, struck twice for Fulham in 2011…against Blackburn! Thats a 14-year wait!While were here, you might like to know the longest break between two Premier League hat-tricks is 2,243 days. Jermain Defoe hit five for Tottenham against Wigan in November 2009, then scored a treble versus Swansea in January this year.Low for LeicesterLeicester are down in 14th. Is this the lowest a Premier League champion has been the season after they won the title? Jordan HMARTIN SAYS: Leicester have actually been lower than this earlier in the season. After one game they were 17th in the table, which is the joint lowest a defending champion has ever been in the Premier League.Blackburn dropped as low as 17th in the 1995/96 season and Leeds were 17th at the end of a day in the 1992/93 season - although the Premier League had 22 teams back then and for the record they were champions of the old Football League, not the Premier League. Watch highlights of Watford 2-1 Leicester Chelsea dropped to 16th last season, while Manchester United were also 16th early in the 2007/08 season (this data is based on the END of a day of fixtures).Leicester are currently two points above the relegation zone. No champion side has ever been as low as 18th in the Premier League era and we have never seen one in the relegation zone.Upgrade to Sky Sports now and get 12 months half price. Hurry, offer ends December 4! Also See: Premier League video Fixtures Table Live on Sky Cheap NFL Jerseys Cheap NFL Jerseys China Cheap Jerseys From China Cheap NFL Jerseys Authentic Wholesale Jerseys China Cheap NFL Jerseys China NFL Cheap Jerseys ' ' '