Vincenzo Iaquinta will require tests to ascertain if he has suffered a thigh strain after pulling up during a Juventus training session.
The striker has been struggling with injury problems throughout the past couple of years.
He had only just returned from a period on the sidelines, but pulled up during today's session in Vinovo.
So far the medical staff are unclear on the extent of the injury to his left thigh.
Tests will be needed to ascertain whether Iaquinta has suffered a thigh strain or something less serious.
Milos Krasic also had a muscular problem on December 31, but should be ready to start against Parma on Thursday.
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