Mourinho, who briefly talked to Fellaini before he went down the tunnel, added: "Fellaini has a bad feeling, he doesn't think it is a tear. "A feeling in a hamstring is always something to be worried about." The Belgian, 29, was playing his first Premier League game since serving a three-match suspension after being sent off for headbutting Manchester City striker Sergio Aguero. Fellaini could be the latest player to join United's long list of absentees for next week's final, which includes Zlatan Ibrahimovic, Marcos Rojo, Luke Shaw and Ashley Young.