Lennon, a star performer this season, hobbled off with a knee injury in the 2-2 home draw against Basel three weeks ago.
The 26-year-old sat out last weekend's 3-1 win over Manchester City after failing a fitness test but he took part in training with the rest of the squad on Wednesday.
Manager Andre Villas-Boas looks set to have a near full-strength squad to choose from for this weekend's clash at the DW Stadium.
Gareth Bale and Jermain Defoe, who had missed the last few weeks with respective ankle and pelvis problems, both came through the City game unscathed.
Younes Kaboul's comeback was delayed after he suffered a thigh strain in an U21 match against Manchester United last week but the defender is having treatment on the injury and Spurs hope he will play again before the end of term.