Hull City signing Oumar Niasse is determined to prove his quality at Everton.
Niasse says he harbours no ill-feeling towards Everton boss Ronald Koeman after being frozen out at Goodison Park.
But the 26-year-old, Everton's third biggest signing when arriving from Lokomotiv Moscow for £13.5million in February last year, has vowed to prove the Dutchman wrong.
Asked if he felt bitter towards Koeman, who made the Senegal international train with the club's under-23s, Niasse said: "No, no way.
