Manchester United will be sweating over the fitness of French stars Anthony Martial and Paul Pogba after they sat out a training session with the national team.

Pogba and Martial are a part of the squad that will face Colombia and Russia in friendlies, but they have been missing parts of training.

Martial is yet to train, and Pogba missed the second training session on Tuesday. It is unclear when the players will resume full training, or if they will be fit for the first of the two games.

Manchester United manager Jose Mourinho will be hoping both players are returned to the club in good condition when the international break ends. The last thing he needs is another injury crisis given the club's upcoming fixtures.