Lower back injury and is rated as 50-50 for the Brighton match. Solskjaer said: "Neither of them [Anthony nor Victor] trained this morning. We are still waiting for final confirmation on how they are."
Second placed United could be without the attacking threats of Anthony Martial, Marcus Rashford and Mason Greenwood who are all hoping to be fit in time to face Graham Potter's Brighton.
Martial missed training on Friday with a reported knee issue picked up on France duty, while Rashford and Greenwood’s pulled out of their England squads.
Victor Lindelof also missed training with an ongoing back complaint, while Ole Gunnar Solskjaer refused to confirm whether David De Gea or Dean Henderson will start in goal on Sunday.
Unspecified injury. The Spanish midfielder almost made it back before the international break and could be available for selection for Brighton. Solskjaer said: "Maybe, but I'm not sure. It is taking a little bit longer than we expected."
Scroll down and click through to see who is struggling to be fit for Sunday and when they can be expected to return.
Foot injury. Trained in the week and could be available for selection. "They [Marcus and Mason] both joined this morning and hopefully they don't get any reaction. If they complete the session tomorrow they'll be available for selection," Solskjaer said.
Unspecified injury. Greenwood will be assessed ahead of Brighton. Trained this week and in contention. "If they complete the session tomorrow they'll be available for selection," said Solskjaer.
Knee injury. Has a chance but looking doubtful for Brighton. Solskjaer said: "Neither of them [Anthony nor Victor] trained this morning. We are still waiting for final confirmation on how they are."
Knee injury and could be out for the season. "I'm not sure how long it will be, how long is a piece of rope? Hopefully this season but if not then the start of next," said the United boss.
Played his first 90 minutes since January for France in midweek and could be in contention for a starting role against Brighton. “It can be a massive boost,” Solskjaer said. “He's come back bright and is ready to go."
Bailly has not featured since the 1-1 draw with Milan in the first leg of the Europa League last 16 tie on March 11. Unclear on a return date at this stage.
The striker is expected to return and is fit to face Brighton at Old Trafford if selected. The Uruguayan missed four of United five matches prior to the international break due to injury.
Manchester United head coach Ole Gunnar Solskjaer has fitness concerns ahead of Sunday