are sweating on the fitness of ahead of Brighton’s visit to Old Trafford on Saturday.
The Argentine was forced off during the defeat to 12 days ago with an injury to his foot.
It was the same foot that Martinez injured at the back end of last season, with the issue keeping him out for seven weeks.
Martinez has come off in two of United’s first four matches this term and the defender is clearly still affected by the foot issue that he sustained last April.
Despite his problems, Martinez met up with the Argentina squad in South America over the international break.
However, despite training on and off, he didn’t participate in either of Argentina’s matches.
The Telegraph now say there’s significant doubt as to whether Martinez will feature against Brighton on Saturday.
With Luke Shaw and Raphael Varane sidelined, that could mean a centre-back pairing of Victor Lindelof and Harry Maguire.
There’s better news elsewhere, as new boy Sofyan Amrabat could be set for his debut.
The midfielder pulled out of international duty with Morocco last week but the issue was minor.
, ., and .