I think of players that the M.E.N mentioned, everyone except Blind has probably had less game time than they expected over this season. Obviously, Varela is an exception as well, but he's young so can keep probably playing.
Schneiderlin may be left out for Carrick to partner Herrera, which I'm fine with as we're likely to dictate most of this game. West Brom away would be better for bringing Morgan back into the starting line-up. Memphis is on a bit of form, so needs to play, it would be silly to leave him out right now.
Along with that, I'd hope de Gea, Smalling, Rojo, Mata, Rashford, and Lingard fill the other positions for this. Even if Martial is close to full fitness, I'd rather we leave him on the bench and bring him on if needed. We're at Old Trafford again and it'd be a much easier time for Rashford here than at West Brom on the weekend in my opinion.
de Gea
Varela Smalling Blind Rojo
Carrick Herrera
Lingard Mata Memphis
Rashford
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Romero; Riley; Fosu-Mensah, Schneiderlin; Januzaj, Martial
I know Physioroom isn't exactly the most reliable website, but odds are that Borthwick-Jackson, Keane, Rooney, Darmian, Fellaini, Jones, Young, Schweinsteiger, Valencia, and of course, Shaw will miss this game. Rojo could also be a doubt.
Love got injured playing for the U21's, while Pereira, Januzaj, Riley, Poole, McNair, and Weir all played for the U21's in the same game on Monday. Riley only played half of the game while Januzaj was subbed off after an hour, so they might be on the bench I suppose? Probably points to Rojo being fit if one of Riley, Poole, and McNair wasn't left out of that game entirely (and points even less to M.E.N's theory of resting players for Watford). I'm still struggling to find a player to fill the last slot on the bench though, so perhaps someone else has managed to come back from injury a bit sooner than expected?