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Alexis Sanchez scored twice for Chile at the Copa America - as many goals as he managed all season for Manchester United

Manchester United striker Alexis Sanchez limped off with an apparent hamstring injury in Chile's final game at the Copa America.

He pulled up chasing a long ball in the third-place play-off against Argentina, hobbling off after 17 minutes.

The 30-year-old, who has endured a difficult time at Old Trafford since joining from Arsenal in January 2018, is not expected to feature on the club's pre-season tour.

United set off for Australia on Sunday.

Sanchez's injury came in a thrilling game, which Argentina won 2-1 despite having captain Lionel Messi sent off.

United begin their Premier League campaign against Chelsea on 11 August.