West Ham are close to agreeing a deal to sign Maxwel Cornet, but they face competition for the Burnley forward from Everton, Newcastle and Nottingham Forest. David Moyes wants to sign a left-sided attacker and is struggling to convince Filip Kostic to join his side from Eintracht Frankfurt. With Kostic reluctant to leave Eintracht, West Ham have switched their focus to Cornet, whose contract is understood to contain a £17.5m release clause. Cornet, who can play left wing, left-back and through the middle as a central forward, is expected to leave Burnley following their relegation from the Premier League. The 25-year-old joined Burnley from Lyon last year and scored nine goals in his debut season in England. West Ham are trying to negotiate a lower fee with Burnley, which could open up the prospect of them being beaten to the signing of Cornet by a rival club. However they are leading the race to sign the former Lyon player. Moyes would also like to sign a left-back. He is considering whether to move for Leicester’s Luke Thomas. A centre-forward and a midfielder are also on his list. West Ham have been trying to sign the Lille midfield Amadou Onana. West Ham are also still tracking the Blackburn Rovers striker Ben Brereton Díaz.