Tottenham will need at least a draw in Marseille in their final Champions League group game to secure a place in the knockout phase after being denied victory in a dramatic finale against Sporting Lisbon.
Spurs knew victory would guarantee a place in the last 16 but they laboured for long periods before being denied a last-gasp winner when Harry Kane's strike was ruled out for offside with manager Antonio Conte shown a red card in the ensuing chaos.
In a tense encounter, former Spurs youngster Marcus Edwards gave Sporting a deserved 22nd-minute lead with a fine low shot as they punished Conte's side for a poor first-half display that brought loud jeers from the home fans.