Neymar is unlikely to play when Paris Saint-Germain travel to Manchester United in the Champions League next month, according to head coach Thomas Tuchel.
The Ligue 1 champions announced the world's most expensive player had suffered a "painful recurrence" of the injury he sustained to his right foot last season after he limped out of this week's 2-0 win over Strasbourg in the Coupe de France.
PSG returned to action in the absence of their star attacker on Sunday, swatting aside Rennes 4-1 as Edinson Cavani hit a brace.
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As the match was being played, RMC Sport reported Neymar would not be fit to play in the first leg of the last-16 tie at Old Trafford on February 12.