Ole Gunnar Solskjaer was left concerned by Marcus Rashford's latest injury, which forced the forward off in the 72nd minute of a 2-1 win over Brighton not long after he had provided an "excellent" tide-turning equaliser.
Rashford has dealt with significant shoulder, foot and knee problems this year, and it's been suggested by his agency that he hasn't been fully fit since 2019.
Solskjaer was unable to provide immediate assurances on the 23-year-old and said he hoped his "tough" player could recover soon. The manager also revealed a separate setback for the Red Devils, telling reporters that defender Eric Bailly had been diagnosed with Covid-19 during the international break.