Arturo Vidal , who had earlier hit the crossbar , fired Juventus in front from the spot in the 22nd minute after Davide Biondini tripped Kwadwo Asamoah .
The foul appeared to be just outside the area .
Arturo Vidal , who had earlier hit the crossbar , fired Juventus in front from the spot in the 22nd minute after Davide Biondini tripped Kwadwo Asamoah , although the foul appeared to be just outside the area .