Frank Lampard of Chelsea smiles during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Ciaran Clark (R) of Aston Villa receives treatment for a cut to his head during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Frank Lampard of Chelsea touches the ball during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Ciaran Clark (2nd R) of Aston Villa receives treatment for a cut to his head during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Juan Mata of Chelsea looks on during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Jose Mourinho (front), manager of Chelsea, reacts during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Eden Hazard (L) of Chelsea vies with Ron Vlaar of Aston Villa during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Frank Lampard (R) of Chelsea vies with Ashley Westwood of Aston Villa during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Jose Mourinho (2nd R), manager of Chelsea, gives instructions to Eden Hazard (1st L) during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
John Terry (C) of Chelsea vies with Gabriel Agbonlahor(R) of Aston Villa during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Demba Ba (R) of Chelsea vies with Ciaran Clark of Aston Villa during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Romelu Lukaku (R) of Chelsea shoots during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Branislav Ivanovic of Chelsea celebrates scoring during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Branislav Ivanovic (R) of Chelsea vies with Fabian Delph of Aston Villa during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
Demba Ba (R) of Chelsea vies with Ciaran Clark of Aston Villa during the Barclays Premier League match between Chelsea and Aston Villa at Stamford Bridge in London, Britain, on Aug. 21, 2013. Chelsea won 2-1. (Xinhua/Wang Lili)
