Leeds United threw away a two-goal lead before scoring an injury-time equaliser to claim a point at Brighton.
Andy Keogh put the visitors ahead on 18 minutes when he slotted home after the ball had fallen into his path.
The Brighton fightback began on 47 minutes when Craig Mackail-Smith hit home.
Gus Poyet's side finally took the lead with five minutes to play when Mackail-Smith edged in front of his marker to sidefoot in at the near post.
Leeds pushed for an equaliser, and they were rewarded in the 92nd minute when McCormack was on hand to tap in.
The draw leaves Brighton in third place, while Leeds move up to ninth place.