The Black Cats have a wretched record of starting poorly over the last five seasons.
Everton are also keen on bringing in Leicester City’s Steve Walsh.
New statistics have cast doubt on the huge price tag West Ham United have slapped on their star man Dimitri Payet.
Mark Warburton has added eight players to Ibrox side Glasgow Rangers, but will they "smash" the league?
The Villans are reportedly speaking to Sunderland about the midfielder, who starred on loan at Leeds last term.
Liverpool are looking good in pre-season but have bigger challenges to come.
Joe Dodoo appears to be closing in on a move to Rangers.
Liverpool are strongly linked with signing Newcastle's Georginio Wijnaldum.
West Ham United are reportedly keen on Toulouse hitman Wissam Ben Yedder.
Leeds United's under-21s beat Bridlington Town at the weekend.