© Clint Hughes / PA Photos
Wigan Athletic dominated the opening proceedings, and Ben Watson - making his first appearance for the Latics since November - was at the centre of much of the visitors' play.
It was the home side who opened the scoring on the half-hour mark, after good work between West Brom's forwards. Romelu Lukaku played a ball into the right-hand channel for Markus Rosenberg, squaring the ball for Shane Long, who slid in to knock the ball home.
Five minutes before half time, Wigan Athletic equalised after a swift breakaway. The ball was fed to Jean Beausejour, whose cross was met by Arouna Kone, who headed in his 13th goal of the season.