Sunderland boss Martin O'Neill is taking his time in the summer market.

The Black Cats returned to training earlier this week with only one new face, that of former Aston Villa defender Carlos Cuellar, among their ranks.

He told The Journal: "When we come back from South Korea, I would expect the situation to change.

"We are obviously in the market to try to strengthen our team, of course. I think that's pretty obvious - all football clubs will be trying to do that.

"But for us, it would be nice to add a couple of fresh faces - not just for the sake of it, but to improve the quality of the squad, which is what we are trying to do."