Manchester United boss Sir Alex Ferguson and Chelsea's Rafa Benitez are on an FA Cup collision course. Ferguson and Benitez fell out in spectacular fashion during the Spaniard's spell as Liverpool boss when he launched into his infamous 'facts' rant, denouncing Ferguson and United's influence on referees and the Premier League.

And Ferguson was not slow to pick up the cudgel again when Benitez returned to management as Chelsea's interim boss earlier this season. He said he was "lucky" to have got the job just before the Blues embarked on their Club World Cup campaign in Japan.

The FA Cup draw means Benitez can take revenge by scuppering United's Treble bid. Although United must first overcome Reading at home tonight and Chelsea see off Middlesbrough a week on Wednesday.