Tottenham Hotspur manager Jose Mourinho has confirmed Tanguy Ndombele picked up an injury in training this week.
The Frenchman has struggled for playing time this season and could miss Wednesday's clash with Newcastle United.
"He was training with the group of players that didn't play against Arsenal and then in one action he felt something behind his knee," he said.
"Nothing major, nothing really big but enough for him to leave the training session and to be observed before the training session."