The Sunderland manager wants to add pace and a goal threat to his side for next season.
Brendan Rodgers was appointed as the new Celtic manager last month.
Windass is preparing for his first season as part of Mark Warburton's Glasgow Rangers side.
West Ham United signed Sofiane Feghouli from Valencia this summer.
Middlesbrough are reportedly keen on Derby star Jeff Hendrick.
The Gunners boss has been suggested as the potential next England manager.
France take on Iceland and players linked with Manchester United, Leicester and Tottenham are in action
Tottenham reportedly want a deal starting at £5m for DeAndre Yedlin.
Everton, Bournemouth and Middlesbrough have been linked with Crystal Palace man Wayne Hennessey.
The winger completed a move to Crystal Palace on Friday.
Michael O'Halloran has struggled to establish himself at Glasgow Rangers but fans are nevertheless angry to see him linked with a move away from Ibrox.
Tottenham Hotspur are willing to further break their wage structure if required.
Derby County are reportedly closing in on Everton left back Brendan Galloway.
Tottenham Hotspur want to sign Sebastián Driussi.
Everton are set to sign Manchester United's Morgan Schneiderlin and Standard Liege's Ishak Belfodil.
Atalanta appear certain to sign Pierluigi Gollini from Aston Villa but why would Steve Bruce sanction his departure?
West Ham United vice-chairman Karren Brady is confident of a major improvement to the Olympic Stadium after the Crystal Palace clash this weekend.
Norwich City's star man looks certain to leave this month with Aston Villa, Crystal Palace and Burnley all in the race.
Sheffield Wednesday are reportedly ready to rival Aston Villa for Barnsley star Conor Hourihane.
7 golden rules.
At the end of the match Antoine Griezmann was handed a folded-up piece of paper and instructed not to open it until he got home.
For those who knew Gareth Bale when he was a 16-year-old at Southampton, living with his fellow scholars in the club’s digs at Darwin Lodge, he was a wind-up merchant, always smiling, one of the boys. It is a side to him that has been camouflaged. Bale’s public persona has long been synonymous with playing it straight and keeping his feelings under wraps. Until now.
Briefly, Germany toyed with our minds.