Sunderland have been linked with a cut-price move for Crystal Palace defender Martin Kelly.
National newspapers are reporting Sunderland are weighing up a £2.5million move for the full-back, who joined Palace from Liverpool two years ago.
Sunderland manager Sam Allardyce is looking to add a new full-back to his squad this summer and Kelly looks set to be allowed to leave Selhurst Park.
The 26-year-old made 17 appearances for the Eagles last season.
Sunderland are also tracking West Ham United full-back Joey O'Brien, who worked under Allardyce at Upton Park.
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Meanwhile, Sunderland first team coach Robbie Stockdale has hailed the impact Allardyce has had since arriving last October.
Speaking to the club's website, Stockdale says Allardyce’s no-nonsense managerial style has reaped rewards.
"Sam’s very demanding, he’s very demanding of the players and his staff and he’s very honest.
"There are no punches pulled, you know if he’s not happy.
"But I think that brings a clarity to it as well.
"You know, there’s no in between with him. Personally, you know where you stand and that can only be a good thing.
"I remember as a player, you prefer that. You don’t need to be told half-truths.
"He tells it like it is and he’s very fair with it as well. I think that’s the main thing he’s brought to the club.
"I feel very privileged to be in the role that I have, I feel proud that Sam’s given me that and trusted me with it, the chance to learn from him and Brace.
"We’re a very tight-knit staff."