Martin O'Neill has promised to step up his search for new recruits ahead of Sunderland's start to the season.
The Black Cats have so far only managed to sign Carlos Cuellar on a free transfer and will head out on their pre-season tour to South Korea on Monday with just a solitary new face.
However, O'Neill admits to having a few irons in the fire which he hopes will come to fruition in the coming weeks.
"I have made one or two enquiries, but I have not progressed anything greatly at this moment," he told the Sunderland Echo.
"That's the best way of saying it. It's early. We've just been back a day or two and I've got a couple of things floating around in my mind.
"I haven't done anything definite. I've made the enquiries and said to people, keep us informed. But now I will start to develop things a bit more.
"I'm hoping the players that I'm interested in will be attracting the interest of other teams as well. If there's nobody interested in them, then you worry!
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