Victor Wanyama is baffled by Southampton's form slump.

After defeat to Tottenham, furious manager Ronald Koeman called for a quick change in attitude after a sixth consecutive game without a win - five of which have been in the Premier League - saw the Saints drift closer to the relegation battle.

“We need to work together as a team," urged Wanyama.

“At the moment I don't know what's going on. We need to get clean sheets and score goals but at the moment it is not working for us. We just need to fight more and show our character because we have tough games ahead."