Tottenham manager Ange Postecoglou says James Maddison's injury "does not look great" as he waits to find out the extent of the problem before Thursday's Europa League semi-final second leg against Bodo/Glimt.
Maddison scored as Spurs overcame the Norwegian side 3-1 in the first leg on Thursday, but was taken off in the second half because of an injury.
The attacking midfielder did not feature in the Spurs matchday squad for their 1-1 draw at West Ham in the Premier League on Sunday.
"It doesn't look great but we're just waiting for further information," said Postecoglou after the game at London Stadium.