Middlesbrough may lose Seny Dieng this summer transfer window. The Teessiders sanctioned the sales of Chuba Akpom and Morgan Rogers in the last two transfer windows and they could move Dieng on as Newcastle United circle. The Senegalese shot-stopper joined Michael Carrick‘s side in a £2m deal from Queens Park Rangers last year and has impressed in his debut campaign. So much so, that The Magpies are looking at bringing him up north to become Nick Pope’s understudy next term. Should Dieng depart, Boro don’t need to look at signing a replacement, as they already have one contracted to the club. …