Harry Kane limped off in the first half as Spurs came from behind to see off Bournemouth 4-1 at the Vitality Stadium.
Kane was hauled ashore on the half-hour mark game after injuring his right ankle in a collision with home goalkeeper Asmir Begovic.
He walked off the field and went straight down the tunnel, with his manger Mauricio Pochettino not willing speculate on the seriousness of the injury afterwards.
We are concerned but need to wait to see the reality.Mauricio Pochettino
"I hope it is not a big issue," said Pochettino, who confirmed the player would be sent for a scan. "We are concerned but need to wait to see the reality."
Junior Stanislas netted an early opener for Bournemouth as the Cherries started strongly but Dele Alli had Tottenham level not long after Kane's exit.
Son Heung-min's excellent recent form continued with a second-half brace that made the points safe before Serge Aurier's late far-post header put the gloss on Tottenham's win.
The three points were enough to move Spurs above Liverpool into third spot in the table, four points adrift of Manchester United in second place.
South Korean forward Son is having a marvellous campaign, which has already yielded 18 goals and he filled the left by the Premier League's leading marksman admirably.
After losing to Juventus in the Champions League in midweek in heartbreaking fashion, Pochettino will have been delighted to see his team showing determination to come from behind and overcome Eddie Howe's men.
Spurs head for Swansea in the FA Cup on Saturday. They are 4/9 to win at the Liberty Stadium. The home side are 15/2 and the draw is 15/4.
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