Trezeguet started training at Vinovo last week and he will be back on the pitch in the New Year.
"I had two really bad months," Trezeguet told Tuttosport. "But I have finally been reunited with my teammates and that will fire me up.
"I want to get back on the pitch and I am extremely happy that Juve have progressed in the Champions League.
"The Champions League is the best competition to play in and I want to be fully fit to contribute to the European cause."