A 16th Premier League goal of the season for Ivan Toney.
Bryan Mbeumo swings in a corner from the right, Christian Norgaard is free at the near post to flick it across goal and Toney reacts first, sliding in to volley into the net from close range.
Toney will be another player with eyes on Gareth Southgate's England squad announcement tomorrow.
Palace get a free-kick and Michael Olise on his left-foot looks to swing it in the top corner.
But the Brighton wall does its job, deflecting the set-piece behind for a corner, which Moises Caicedo defends well with a clearing header at the near post, winning a free-kick too.