Kylian Mbappe could be set to make an unexpected return to the Paris Saint-Germain squad ahead of Tuesday's Champions League meeting with Bayern Munich.

The forward has missed the last three games with a thigh injury, and he was widely expected to be absent from the first leg against Bayern, but after taking part in Sunday's training session, he could return earlier than previously thought.

With Mbappe in a race against time to be ready for the midweek contest, he remains a doubt, while full-back Nordi Mukiele and central midfielder Renato Sanches are guaranteed to miss out through injury.

Christophe Galtier will welcome Lionel Messi back into the fold after the Argentine missed Saturday's disappointing 3-1 defeat to Monaco with a hamstring problem.

Messi is the second-highest scorer in Champions League history with 129 goals in the competition and he will be joined in the frontline by Neymar, who also boasts an impressive record of 43 goals in 80 Champions League appearances.

Fabian Ruiz and Marco Verratti were ruled out on Saturday due to illness and injury respectively, but the pair are expected to feature in the PSG midfield on Tuesday, while Carlos Soler could operate behind the front two.

Presnel Kimpembe stepped up his recovery from injury by appearing for 11 valuable minutes at the weekend, and following the game, he used a megaphone to apologise to the travelling fans for the defeat.

Having only returned from the treatment room, the 25-year-old may have to settle for a place on the bench, with Sergio Ramos expected to come back into the side to partner Marquinhos in central defence.

Achraf Hakimi was a doubt for the trip to Monaco due to a hamstring issue, and as a result, Galtier decided against taking any risks, leaving the Moroccan on the bench for the majority of the contest.

However, the 24-year-old will be brought into the lineup to operate at right-back, while Nuno Mendes will also return to the starting XI to feature on the opposite side.

Paris Saint-Germain possible starting lineup: Donnarumma; Hakimi, Marquinhos, Ramos; Mendes; Ruiz, Pereira, Verratti; Soler; Messi, Neymar

Click here to see how Bayern Munich could line up for this fixture.