Winger Antonio Candreva trained separately, meanwhile, as he tried to recover from a hamstring injury he suffered in the 1-0 win over Sweden on Friday.
With Italy having already assured top place in Group E and qualified for the last 16, Buffon, 38, was expected to be rested in any case for Wednesday's match against Ireland in Lille.
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(Writing by Brian Homewood in Nice; Editing by Toby Davis)
