Lisandro Martinez took part in Manchester United training yesterday.
The Argentina defender was joined by Marcus Rashford as they both target Sunday's clash with Arsenal.
Martinez has not played since the 1-1 draw at Brentford in March.
Rashford, meanwhile, has been missing since the FA Cup semifinal against Coventry City.
United go into Sunday's match on the back of a 4-0 hammering at Crystal Palace.