London - The priority is returning to the Champions League for Manchester United. Winning the FA Cup, though, would provide a bonus prize at the end of a first stuttering season in England for coach Louis van Gaal.
Knock out Arsenal in the quarterfinals and the path to Wembley Stadium would become a lot smoother. Liverpool, which hosts Blackburn on Sunday, is the only other Premier League power still in the competition after a string of upsets in earlier rounds.
And United, which is a point behind third-place Arsenal in the league, overcame the London club 2-1 in November.