Manchester United striker James Wilson has broken down during U21 action.

The Manchester Evening News says Wilson was on the scoresheet - but at a cost.

The 19-year-old striker was substituted in the 40th minute with an apparent hamstring injury and could be a doubt for the first-team's pivotal encounter at Liverpool on Sunday.

Wilson, who has not featured for Louis van Gaal's Reds since the win over Burnley on February 11, played for the Under-21s at Old Trafford against Tottenham last week and was again selected by U21s coach Warren Joyce in an effort to sharpen his match fitness.