CELTIC were handed a pre-match boost ahead of their Champions League meeting with Paris St Germain next Wednesday night when it was revealed that Thiago Motta, the veteran Brazilian who adds steel to their midfield, requires knee surgery and may not play again this year, writes Stewart Fisher.

The streetwise 35-year-old, whose duels with Scott Brown were a feature of the 5-0 win at Parkhead in the team’s first match, has complained of pain in his right knee since the 0-0 Ligue 1 draw at Montpellier in September.

Julian Draxler, the club’s German midfielder, and Thomas Meunier, the Belgian full back, are another two unlikely to feature for the league leaders in their Ligue 1 match against Nantes this Saturday, although they are being rested following their exertions on international duty and could come back into contention when Celtic come calling.

Unbeaten in the league this year, and leading Monaco at the top of the table - their last two results prior to the international break were 3-0 and 5-0 dismantlings of Nice and Angers - PSG are still never far from intrigue.

Neymar this week was forced to insist he is happy to stay at the club in the wake of rumoured interest from Real Madrid, and even suggestions that manager Unai Emery could be replaced next summer by Jose Mourinho.

While the Spaniard is out of contract this summer, it is believed that a run to the Champions League semi-finals would be enough to trigger a further year of his deal.