The Honduras international suffered the injury while stretching in the box to reach the ball ahead of Spurs striker Jermain Defoe in the first half and had to be carried from the field on a stretcher soon afterwards.
Latics manager Roberto Martinez suggested in his post-match press conference that Figueroa will not play again this campaign, ruling him out of the FA Cup final against Manchester City at Wembley on 11 May.
"The initial reaction is that Figueroa should be out for the season," said Martinez.
"It is a groin strain. It was (a great tackle), but the groin got stretched and the rest of the body pulled apart.
"We need to see the extent of the problem, but he is on crutches at the moment. We will assess him."