Francesco Guidolin admits he has to address an issue that is starting to brew within his Swansea City squad.

The Italian substituted Ki Sung-yueng in the second half of Sunday's 1-0 loss to Southampton which prompted an angry reaction from the South Korean.

It comes just a week after Neil Taylor was unhappy at being hooked before half-time in the draw with Chelsea which indicates to Guiodlin that perhaps things need to spoken about but played down suggestions there is a problem within his playing group.

"This is not a good attitude," said the Italian. "I have to speak with him.

"I respect all my players, the relationship is important. There is no problem. In this squad I have good guys, good players, there is no problem with the relationship. I can understand it, but it's not a good situation.

"There is not a problem between me and Neil.

"In this period I prefer Stephen (Kingsley). I have Angel Rangel as sub and Kyle Naughton can play left or right so I don't need another left-back in the ranks."