Southampton manager Ronald Koeman has criticised his side's defending following their 3-2 FA Cup loss against Crystal Palace on Saturday.

Palace twice came from behind during the game at St Mary's Stadium and eventually sealed victory thanks to a strike from Marouane Chamakh.

Following the match, Koeman told reporters: "I think the defeat came out of our poor first half defensively. Normally that's one of the strengths of the team.

"We made a lot of mistakes so they got a lot of opportunities and they scored three times, and that's not usual.

"Defensively we didn't work together and we didn't have the concentration we usually have."

Next up for Southampton, who have the best defence in the Premier League, is a game against Swansea City.