Southampton's 1-0 loss at Sparta Prague in the Europa League on Thursday was a "bad result", manager Claude Puel accepted.
Claude Puel called for Southampton to improve their concentration levels after his side were beaten 1-0 at Sparta Prague in the Europa League on Thursday.
An early volley by Sparta's left-back Costa Nhamoinesu proved to be the winner as Southampton struggled for penetration despite dominating possession.
Southampton will have to either beat Hapoel Be'er Sheva or draw 0-0 in their final game at St Mary's in a fortnight to go through and Puel said his team have to maintain their focus.