Manchester United defenders Leny Yoro, Matthijs de Ligt, and Ayden Heaven missed training one week before the Europa League final against Tottenham.
Yoro suffered a foot injury against West Ham, while De Ligt picked up a knock against Brentford.
Heaven trained individually before the semi-final but was absent from the open session.
Jonny Evans and Toby Collyer participated in training.
Diogo Dalot trained individually as he aims to be fit for the final, but Lisandro Martinez and Joshua Zirkzee are ruled out for the season.