Everton were reportedly willing to spend £18m on Lamine Kone last summer but the Sunderland defender has struggled for form since.
Everton youngster Tyias Browning produced one of his best displays for Sunderland as they held Preston North End to a draw at Deepdale.
With Sunderland suffering from some defensive injuries, Tyias Browning could well return against Cardiff.
Tyias Browning has enjoyed a promising start to life at Sunderland and Everton could benefit.
The Everton loanee and Ivory Coast international helped Sunderland to a point at Hillsborough on Wednesday.
Everton-owned Tyias Browning has joined Sunderland on a season-long loan deal in the summer transfer window.
On-loan defender impressing new Sunderland boss with pre-season displays.
Tyias Browning featured for Sunderland against Hartlepool on Tuesday.
Sunderland have signed both Brendan Galloway and Tyias Browning on loan from Everton.
Sunderland are closing in on Everton duo Tyias Browning and Aiden McGeady.