McKennie suffered the injury in training last week and was forced to miss his team’s friendly against Real Madrid on Saturday.
On Monday, Juventus released a statement saying that the midfielder would require at least three weeks on the sideline.
“Weston McKennie underwent radiological examinations at J | Medical this morning, which revealed a capsular lesion of the left shoulder,” the statement said. “The player will begin rehabilitation, three weeks’ differentiated work will be required.”
Juventus begins its regular-season campaign on August 15 against Sassuolo, then faces Sampdoria a week later. Should he miss at least month, as some Italian media is reporting, then the likely earliest date he’d be available is a match against Roma on August 27.
The injury is another blow for McKennie, who missed most of the second half of last season with a broken bone in his foot.
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