Second-half goals from Fabian Delph and Scott Sinclair secured a semi-final trip to Wembley for the hosts on the back of a 2-1 win over West Brom in the Premier League during midweek. But the closing stages of the Villa Park contest were marred by a group of Villa fans entering the field of play and a mass pitch invasion followed Pulis told BBC Sport: "It's disgraceful. We don't want to see those scenes. They've beaten us and for that to happen, that's just mindless idiots. "If you're…