Robert Lewandowski may not be in condition to start against Las Palmas on Saturday, Diario Sport report.
The striker has had 'discomfort' during the Poland v Wales game as he played 120 minutes. The doctors had to treat him with ice before extra time.
The 35-year-old will be able to participate in only two training sessions before the Las Palmas game. This will force Xavi to think if he wants to take risks and start him or put him on the bench.
Lewandowski has had a mixed campaign with Barca so far but has been in top form over the past few weeks.
He netted two goals over two legs against Napoli as the Catalans progressed to the Champions League quarter-finals. He scored and provided two assists in Barca's last game before the international break, a 3-0 victory away at Atletico.
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