Paul Clement was full of praise for a pair of his Swansea City stars on Tuesday night.
Winter signing Luciano Narsingh came off the bench on debut to supply Gylfi Sigurdsson with the winner in their 2-1 triumph over Southampton.
Sigurdsson had earlier provided Alfie Mawson with his side's opener before the Saints replied through Shane Long.
"Gylfi has fantastic delivery at set-plays and he produced a wonderful finish after good work from Luciano Narsingh, who made an instant impact," said Clement.
"But I would like to comment on Gylfi's work ethic. People have asked me if he is all right playing on the left, but I haven't had a conversation with him about that.
"He has done everything that has been asked of him."