Serge Aurier is facing stiff competition from Matt Doherty, but Moussa Sissoko lauded his the Ivorian's response to the challenge.
Tottenham had a training friendly against Norwich City on Friday but will not play again before hosting Manchester United.
With Harry Kane out until April, Jose Mourinho is hopeful Daniel Levy can come up with the "right solutions" in the transfer market.
Moussa Sissoko has had an operation on a damaged knee ligament and is not likely to return to action before April.
Tottenham thrashed Burnley 5-0 in Saturday's Premier League clash to move up to fifth place, Son Heung-min scoring the pick of the goals.
Liverpool edged past Brighton and Hove Albion at Anfield, while Manchester City's title hopes suffered a blow against Newcastle United.
Tottenham made it three wins from three under Jose Mourinho as Dele Alli inspired victory over Bournemouth on Saturday.
Tottenham last won a Premier League game at the end of September but Moussa Sissoko insists effort is not lacking.
Liverpool are six points clear again in the Premier League after avoiding the sort of extended slump that cost them in 2018-19.
After being held to a 1-1 draw at Manchester United a week earlier, Liverpool had to come from behind to beat Tottenham 2-1 at Anfield.