Juve revives Champions League hopes
TURIN, Italy (AP)
Vidal broke the deadlock in the 28th minute from the penalty spot after Lars Jacobsen had handled in the area.
Former Juventus defender Olof Mellberg swiftly went from hero to villain for Copenhagen as he equalized in the 56th before giving away a penalty four minutes later when he brought down Fernando Llorente.
Vidal again converted and headed home two minutes later to complete his hat trick.
In Group B's other match, Real Madrid beat Galatasaray 4-1. Juventus moved second, two points ahead of Galatasaray, which it plays in its next and final group match.