Harry Redknapp hopes Luka Modric will be fit for UEFA Champions League duty, but will not be taking any risks.
With Tottenham set to make their bow in the group stage of Europe's premier club competition on Tuesday, they are desperate to have their key men in contention.
That includes influential playmaker Modric, who picked up a leg injury after scoring the opener in Saturday's 1-1 draw at West Brom.
Medical tests have ruled out any long-term damage, but it is still unclear as to whether the Croatian will be ready for continental competition.
Redknapp is prepared to give Modric as long as possible to stake a claim for a starting berth, but has made it clear that he is not prepared to gamble on his fitness.
"He's still got pain in his leg so we'll have to see how he is this evening," said the Spurs manager.
"I couldn't take a chance on him unless he feels he's right.
"To go out there and break him down and then lose him for long-term, it just wouldn't be right. To be honest, he's very doubtful."
Redknapp also faces a selection quandary when it comes to summer signings Rafael van der Vaart and William Gallas, with both men still lacking in match sharpness.
"I think that was Van der Vaart's first 90 minutes since before the World Cup and William Gallas' first 90 minutes since the World Cup," he said on the weekend stalemate with the Baggies.
"I think they were both completely wiped out almost by the end of the game on Saturday. It was tough for them.
"It's whether I feel they're ready to play a game so quickly."