Manchester - Arsenal manager Arsene Wenger said that Danny Welbeck had been motivated by a desire to prove Manchester United wrong after he knocked his former club out of the FA Cup.
A Manchester-born United academy graduate, England striker Welbeck left for Arsenal in a $24.2 million deal last September after falling out of favour under new manager Louis van Gaal.
The Dutchman claimed Welbeck was not good enough to hold down a starting place at Old Trafford, but his words returned to haunt him as the 24-year-old earned holders Arsenal a 2-1 win on Monday that set up a semi-final meeting with either Reading or Bradford City.