Diego out of Champions League opener
The Brazilian, in fine form since his close season move from Werder Bremen, was injured in the first half of Saturday's 2-0 Serie A win at Lazio.
Juve initially feared the problem could be serious but a statement on their website said he would return to action in a week.
"Good news for Diego, seven days out," the statement said.
He will also miss Saturday's league game at home to Livorno.
Alessandro Del Piero, Zdenek Grygera, Mohamed Sissoko and Hasan Salihamidzic are injured too and will sit out the Group A clash against the French champions while centre back Giorgio Chiellini is suspended.
Defender Jonathan Zebina has been named in Tuesday's squad after recovering from a nagging heel problem.