Coach Thiago Motta's strategy of playing Gonzalez, usually a winger, behind striker Dusan Vlahovic in the first half paid off as Juventus struck twice before the break to clinch their first win in five Serie A matches.
"To help the team, I can also play as goalkeeper... I also let the coach know that," Gonzalez told DAZN after netting the winner.
Motta praised the versatility of Gonzalez and Juve's other goalscorer Weston McKennie, saying it was a pleasure for a coach to work with players with the right attitude.
Juventus, sixth in the table, host fifth-placed Fiorentina next Sunday.