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London, UNITED KINGDOM: Referee Graham Poll (L) tries to calm down Manchester United's Gabriel Heinze (R) during their Premiership match against Chelsea at home to Chelsea at Stamford Bridge Stadium, London 09 May 2007. AFP PHOTO/CARL DE SOUZA. Mobile and website uses of domestic English football pictures subject to subscription of a licence with Football Association Premier League (FAPL) tel: +44 207 298 1656. For newspapers where the football content of the printed and electronic versions are identical, no licence is necessary. (Photo credit should read CARL DE SOUZA/AFP via Getty Images)

London, UNITED KINGDOM: Referee Graham Poll (L) tries to calm down Manchester United's Gabriel Heinze (R) during their Premiership match against Chelsea at home to Chelsea at Stamford Bridge Stadium, London 09 May 2007. AFP PHOTO/CARL DE SOUZA.   Mobile and website uses of domestic English football pictures subject to subscription of a licence with Football Association Premier League (FAPL) tel: +44 207 298 1656. For newspapers where the football content of the printed and electronic versions are identical, no licence is necessary. (Photo credit should read CARL DE SOUZA/AFP via Getty Images)