The French attacker hasn’t been seen in action for United since the 3-1 defeat to Leicester City in the Emirates FA Cup quarter-final in March.
Martial suffered a knee injury the following week, while playing for France against Kazakhstan in a World Cup qualifier.
The issue ruled our no.9 out of the final two months of the campaign, while he also missed out on Didier Deschamps’ 26-man squad for Euro 2020, with Les Bleus ultimately knocked out by Switzerland in the round of 16.
But now Solskjaer has revealed that Martial is once again working hard at Carrington as he bids to make it back into the first-team picture.