If Manchester United can get by an FA Cup replay against Chelsea at Stamford Bridge, they'll face a massive derby match at Wembley in the semifinal. Manchester City has drawn the winner of that replay, while the winner of the Millwall - Blackburn Rovers replay will face Wigan.
Both of Sunday's FA Cup quarterfinal matches ended in draws, while Saturday's both produced clear winners. Wigan had no problem advancing past Everton at Goodison Park, while City thrashed Barnsley. The Millwall - Blackburn match was a bit of a bore draw, and the replay at Ewood Park probably won't feature much more attacking play. Manchester United and Chelsea certainly produced the best match of this round, drawing 2-2 at Old Trafford.
No matter who advances out of that United-Chelsea replay or the ensuing semifinal, the FA Cup final is sure to feature one of English football's giants against a massive underdog. If Wigan are victorious against their Championship opponent, they will appear in the final for the first time in their history.
Manchester City vs. Manchester United or Chelsea