"The scan was clear but he is still feeling pain in his leg," Mauricio Pochettino told tottenhamhotspur.com. "He is recovering well but we need to wait. Like Harry [Kane], he's not available for the weekend but we are happy because it's not a big, big issue."
Before being substituted at The Hawthorns the Belgian had previously only been absent for just one minute of top-flight action for Spurs, having missed the closing moments of last season's 2-2 draw with Chelsea at Stamford Bridge.
Spurs could also be without left-back Danny Rose, who suffered a bruised foot in the UEFA Champions League on Tuesday, though Kane has returned to training this week and is working towards full fitness.