Claude Puel's side still have work to do if they are to progress to the knockout stages after a limp display against the hosts who will finish as group winners
Southampton slipped to a 1-0 defeat to Sparta Prague in the Europa League to leave them needing a scoreless draw or a victory in their final group game to progress to the knockout stages.
The Czech side began the game in pole position and the hosts asserted their dominance in the 11th minute, left-back Costa Nhamoinesu converting an excellent Borek Dockal free-kick.
Southampton failed to create a clear-cut chance of note from open play and Claude Puel's men will now have to beat Hapoel Be'er Sheva or secure a goalless draw in their final group game to guarantee their progress into the next round.