Alex Telles could miss the start of the season for Manchester United due to an ankle injury.
Telles, 28, twisted his ankle in training at United's pre-season camp at Pennyhill Park and was absent from the matchday squad list against Queens Park Rangers.
Brandon Williams is starting for United at left-back again, with Luke Shaw on holiday following England's European Championship campaign.
"Unfortunately, Alex slipped and he twisted his ankle so he’ll be out for a few weeks," Solskjaer told MUTV. "We hope it’s not too bad."
Solskjaer confirmed Daniel James will play 45 minutes in his first pre-season appearance, having linked up with the squad in Surrey.
Telles' injury could impact plans for fellow full-back Williams to head out on loan next season. Williams, 20, has generated interest from Premier League and Championship clubs.
United are also interested in signing Atletico Madrid right-back Kieran Trippier - who can play at left-back - while Diogo Dalot, who can also play on both sides, is expected to report for pre-season training next week.
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