Stoke 2-1 Southampton: Defeat difficult to understand - Koeman

Southampton manager Ronald Koeman says his side's 2-1 loss against Stoke City is "difficult to understand".

Morgan Schneiderlin gave the Saints a first-half lead, but Stoke responded through Mame Biram Diouf before substitute Charlie Adam's volley late on sealed the win for the home side.

The result leaves Southampton five points off the top four and Champions League qualification.