Paris - An injury to Edinson Cavani gave Paris Saint-Germain fresh cause for concern on Saturday as the French club's huge Champions League showdown with Manchester United approaches.
Cavani appeared to hurt his leg while taking the penalty three minutes before half-time that gave PSG a 1-0 win over Bordeaux at the Parc des Princes in Ligue 1.
Television replays showed the Uruguayan grimacing and asking to be substituted. He left the pitch moments later and was replaced by Kylian Mbappe at half-time.
An injury to Cavani, who is PSG's all-time leading scorer and has netted 22 times this season in all competitions, would be another huge blow to the French champions ahead of Tuesday's game at Old Trafford.
They are already missing Neymar for the Champions League last-16 tie against a resurgent United, with the Brazilian not expected back from a metatarsal injury until early April.
He was in attendance at Saturday's game, which saw Marco Verratti make his return to action after three weeks out with an ankle injury.
The win allowed PSG -- whose shirts carried the players' names in Mandarin in a nod to the Chinese New Year -- to get back on track after last week's 2-1 loss at Lyon, their first Ligue 1 defeat this season.
The reigning champions are 13 points clear at the top with a game in hand on second-placed Lille, who visit bottom side Guingamp on Sunday.
Such is their margin for error domestically that coach Thomas Tuchel could afford to wrap a host of key players in cotton wool with one eye on the Champions League.
As a result, Mbappe started on the bench while Angel di Maria, Marquinhos, Juan Bernat, Thilo Kehrer and Julian Draxler -- all probable starters in midweek -- were left out of the squad completely.
Meanwhile, Verratti lasted just under an hour before making way for recent signing Leandro Paredes, and Tuchel must now decide whether to start the Italian playmaker in England.
Cavani and Moussa Diaby came close for the home side in the first half-hour, either side of Eric Maxim Choupo-Moting being denied by a terrific save from Bordeaux 'keeper Benoit Costil.
Bordeaux had held PSG at home when the teams met in December, but they were undone late in the first half here as Nicolas de Preville fouled Thomas Meunier in the box, and Cavani netted from 12 yards.
Mid-table Bordeaux slumped to a fourth straight loss between league and cup, although they nearly equalised on the hour mark when Francois Kamano's first-time shot from 20 yards was superbly saved by Gianluigi Buffon.
Elsewhere in France, on a weekend when a minute's applause was held before all games as a tribute to Emiliano Sala, Mario Balotelli and Lucas Ocampos scored to give Marseille a 2-1 win at struggling Dijon on Friday.