Chelsea’s Gary Cahill keeps a close eye on Manchester City’s Carlos Tevez (right) during the Barclays Premier League match at the Etihad Stadium, Manchester. PRESS ASSOCIATION Photo. Picture date: Wednesday March 21, 2012. See PA story SOCCER Man City. Photo credit should read: Dave Thompson/PA Wire. RESTRICTIONS: Editorial use only. Maximum 45 images during a match. No video emulation or promotion as ‘live’. No use in games, competitions, merchandise, betting or single club/player services. No use with unofficial audio, video, data, fixtures or club/league logos.