Manchester United are concerned Harry Maguire and Victor Lindelof could both miss Saturday's game against West Brom due to injury.
Both centre backs played 90 minutes for their respective countries this week but have reported back to the Red Devils nursing some fitness problems.
Saturday's fixture is an important one for United as they look to build some momentum heading into the Christmas period. They currently sit 14th with just ten points, having lost three of their opening seven games.
According to ESPN, Maguire is a doubt after reporting some bruising on his foot following the Three Lions' emphatic win over Iceland on Wednesday. Not only did the United skipper feature in that game, he also played in his side's win over the Republic of Ireland last Thursday, scoring the opening goal.
Meanwhile, the Red Devils are increasingly worried about Lindelof's back injury. Although the 26-year-old managed to get through Sweden's meeting with Croatia on Saturday, he was forced off in the second half of his side's game against France on Tuesday.
If Maguire or Lindelof do miss out on the West Brom match, Solskjaer has several different replacements at his disposal. Axel Tuanzebe could be drafted in, while midfielder Scott McTominay once again impressed at centre back for Scotland and could be fielded in the same role for United if needed.
Eric Bailly is also edging closer to full fitness. The Ivorian has been out for over a month with injury and has not featured since his terrible performance in United's 6-1 defeat to Tottenham at the beginning of October.
In other selection news, Alex Telles could finally return to the United starting XI. The Brazilian was in isolation until recently and returned a negative test while on international duty.