Tottenham face a wait to find out whether Wilson Odobert picked up an injury against Monaco.
The Frenchman produced one of his better performances of the season in a goalless draw in the Champions League on Wednesday night, looking bright and direct when he ran with the ball on the left wing.
However, Odobert went down in the second half and required treatment on what appeared to be his rib area. Shortly after that he was replaced by Brennan Johnson.
Asked for an update on Odobert after the match, Spurs head coach Thomas Frank told reporters: "Actually, I don't know.
"But of course we subbed him off because there was some pain. But I don't know the consequences of it."
Odobert is yet to score or assist this season but has established himself as Tottenham’s first-choice winger on the left.
The 20-year-old has started the last four matches across all competitions, moving ahead of Johnson in the pecking order.
Any injury absence would therefore be hugely frustrating for Spurs, who were already without 10 first-team players as they produced a poor performance against Monaco.
They had goalkeeper Guglielmo Vicario to thank for escaping the principality with a point after the Italian made eight saves in a superb performance.
Frank turned to Archie Gray at left-back with his defensive options thin. Cristian Romero, Destiny Udogie and Ben Davies did not travel after picking up issues during the recent international break.
Dejan Kulusevski is among the longer-term absentees, while the likes of Mathys Tel and Radu Dragusin were left out of Spurs' squad for the league phase of the Champions League.
