Arsenal beats Man Utd 2 - 0 in the second quarterfinal . Former Manchester United player derby derby scores 0 . Holders Arsenal took the lead through a Monreal before Wayne Rooney equalized . Angel Di Maria sent off for shoving goals in second half .
Arsenal beats Man Utd 2-1 in FA Cup quarterfinal . Former Manchester United player Danny Welbeck scores winner . Holders Arsenal took the lead through Nacho Monreal before Wayne Rooney equalized . Angel Di Maria sent off for shoving referee in second half .