federici allowed alexis sanchez 's driven shot to slip through his body in extra-time as ran out 2-1 winners at wembley to reach their second consecutive final , having beaten hull to lift the trophy last year .
the mistake overshadowed a number of strong saves federici had made to keep his side in the game and szczesny had only kind words for his opposite number .
wojciech szczesny -lrb- left -rrb- says he feels sorry for adam federici .