Paul Pogba and David de Gea missed training on Wednesday ahead of Manchester United's trip to Partizan Belgrade in the Europa League.
World Cup-winner Pogba has not played since September 30 due to a toe injury but there had been suggestions he could be fit for the clash in Serbia.
De Gea starred in United's 1-1 Premier League draw with leaders Liverpool on Sunday but failed to appear for the open section of training at Carrington.
Luke Shaw, Nemanja Matic, Diogo Dalot and Axel Tuanzebe were also absent, with all four having been unavailable for the clash with Jurgen Klopp's Reds at Old Trafford.