Juventus wing-back Patrice Evra has been sidelined for a month after being diagnosed with a hamstring strain, according to several reports in Italy Monday.

Evra suffered the injury during training last week, keeping the Frenchman out of coach Massimiliano Allegri's squad for Sunday's 2-0 win over Palermo that sent the champions three points clear of Roma.

If confirmed, Evra could miss two key Champions League fixtures that will be crucial to Juve's chances of qualifying for the last 16 of the competition.

Juventus sit third in Group A, three points behind Atletico Madrid and Olympiakos after suffering a 1-0 defeat to the Greek side in Athens last week.