The Irishman flew across his goal to prevent a rasping volley heading into the top corner.
This player has been a regular for the Owls this season, but wasn't signed by the Portuguese coach.
Rangers are reportedly plotting a summer move for Dundee striker Greg Stewart.
Watford are set to host Everton at Goodison Park at the weekend.
The Frenchman knows he has to be more than just a goalkeeper.
The Italian defender has been in poor form recently.
West Ham United will face Arsenal in the Premier League on Saturday.
Koeman's Southampton side host the Magpies at St. Mary's on Saturday.
Sunderland are set to host Leicester City at the weekend.
Liverpool visit Borussia Dortmund this evening and the teams have been announced.