Whilst all eyes will be on Aberdeen’s new manager making his debut, Rangers fans are hoping to catch their first glimpse of Mohamed Diomande at Ibrox. With the Dons appointing legendary English manager Neil Warnock, 75, as their new boss, the ex-Sheffield United, QPR, and Crystal Palace manager’s first foray into Scottish football has already begun to steal the headlines. But in a match where legends can so often be made, Rangers could also be set to introduce a player of real potential. Step forward Mohamed Diomande who, after being introduced to the crowd in the win over Livingston, is all s…