Marcus Rashford and Anthony Martial could miss Man United's Champions League clash against Bayern Munich if the duo are absent from training due to illness… but Lisandro Martinez will return to Carrington

Man United duo Marcus Rashford and Anthony Martial could miss the club's crucial Champions League match against Bayern Munich on Tuesday after missing training due to illness.

Neither player was present at Carrington on Monday as Erik ten Hag prepared his side for a match he knows his side must win against the Bavarian giants to have any chance of progressing to the knockout stages of the country's premier competition Europe.

Rashford fell unwell on Friday before taking his place among Man United's replacements following their dismal 3-0 defeat to Bournemouth the following day.

He eventually played 11 minutes in the defeat to the Cherries, but he and Martial were not good enough to perform in their final training – confirmed by United at their match. official website.

It will be a concern for Ten Hag, who wants the strongest possible team against a strong Bayern team with superstars such as Leroy Sane and Harry Kane.

Marcus Rashford and Anthony Martial both missed training for Man United due to illness

Erik ten Hag will be concerned about the news in the run-up to United's match against Bayern

However, the Dutchman – who is under fire as Man United manager after a difficult campaign – received better news when Lisandro Martinez returned to the field for the session after being out of action since September.

Rashford, meanwhile, was left out of United's squad for the first time this season in the Premier League against Chelsea, if available, after receiving widespread criticism for his efforts in the 1-0 defeat to Newcastle.

He seemingly repeatedly refused to go back and showed little desire to be involved, with former United player Mark Hughes saying he doesn't think Rashford is enjoying his football again.

“I think Rashford has gone back to the mentality he had before last season: he doesn't look happy,” he said on radio. Not a Tippy Tappy Football podcast with Sam Allardyce.

There was better news about Lisandro Martinez, who returned to training after being out of action since September

Rashford missed United's starting XI for the first time this season against Chelsea before illness forced him onto the bench for the loss to Bournemouth

“He obviously had a lot to do away from the game, which may have taken something away from him, and maybe he just needs to get back fully focused on what his role is when he's asked to pull on the shirt for Man United.”

Ten Hag, meanwhile, has insisted it is up to Rashford to try and force his way back into the squad.

“Rashford is an incredible, good player,” he said. 'You can't do it with eleven players, he can't play every match. He's not in the form he was last year at the moment, but I'm sure he'll get there.

it's up to him. The team will always line up and the best players who make the best team will play. I think we have a team and within the team there is internal competition. In every season it will change and in every season it is the best team.

Rashford and Martial (L) have had major questions about their efforts recently

“They are here, they are great players and have played in the team. You expect that from every player, there has to be commitment.'

He also defended Martial after the Frenchman – whose contract expires next summer – was booed against Bournemouth.

“Two weeks ago against Everton he played a very good game,” he said.

'So he definitely has the competence and the ability to play, so I don't think it's fair to go to one player now after a performance like this. As a group we completely failed.”