After attempts to sign Eldin Jakupovic and Sam Johnstone, Sunderland are reported to have turned their attention towards Birmingham City's Tomasz Kuszczak.
The Polish goalkeeper could be a useful addition to the Sunderland squad this summer.
West Bromwich Albion may have picked up more impressive victories in the Premier League, but few can be classed as so important.
Birmingham City have a number of players currently on permanently deals that expire this summer.
The former Burton Albion and Birmingham City boss is closing in on a managerial return - he'll need some trusted players to help turn Forest around.
Blues manager Gary Rowett will decide on a possible formation change ahead of the derby clash against Aston Villa.
How did the Birmingham players rate in their game vs Wolves?
The Polish international has been integral to Birmingham City's season.
Gary Rowett's men's next opponents currently find themselves in the Championship relegation zone.
Buckley is on loan with the Championship side until the end of the season.