Martial is one of a host of United players that was rated doubtful going into the game, but the Frenchman will hope to feature at Anfield.
Defender Diogo Dalot, another doubt, was also present as United arrived at their accommodations in Liverpool, with Jose Mourinho’s side preparing for a titanic tussle.
Chris Smalling, Victor Lindelof and Matteo Darmian also appear to be fit for the game.
Midfielder Paul Pogba, meanwhile, looked focused ahead of the game, while David de Gea and Ashley Young were also in attendance.
United go into the clash in sixth place in the Premier League, 16 points adrift of Liverpool, who are second.
Mourinho’s side have already been beaten four times in the league this campaign, but Liverpool have yet to lose and will be determined to preserve that run on Sunday.
A win for United, however, could be just what Mourinho and his team require in order to kick-start their season.