The World Cup winner was the match-winner in the first leg at Parc des Princes, but may be unavailable for the return at Santiago Bernabeu
Kylian Mbappe has emerged as a doubt for Paris Saint-Germains Champions League clash with Real Madrid after picking up an injury in training, GOAL can confirm.
The 23-year-old fired PSG to a late 1-0 win in the first leg of the round of 16 tie at Parc des Princes to give the Ligue 1 leaders a narrow lead to take to Santiago Bernabeu.
However, Mauricio Pochettinos side may have to finish the job without Mbappe if he fails to shake off a fresh knock.
Mbappe sustained an injury during a PSG training session on Monday morning and will now undergo medical exams to assess the damage.
Depending on the severity of the issue, the Frenchman could miss the clubs midweek trip to Madrid to focus on his recovery.
Mbappe was absent from PSGs most recent Ligue 1 fixture on Saturday due to suspension.
Lionel Messi took the World Cup winners spot in the number nine role but the French giants suffered a surprise 1-0 defeat at Nice, and Pochettino will surely now be sweating on his fitness for the Madrid tie.
Mbappe is PSGs top scorer this season with 24 goals to his name from 34 appearances, and it has also been suggested that the outcome of the Champions League clash with the Blancos will have a major bearing on his future.
GOAL has reported that Madrid are confident of signing Mbappe on a free transfer when his contract expires this summer, and knocking PSG out of Europe would surely boost their chances of sealing a deal as the Parisians continue to struggle to tie him down to fresh terms.