After last half-season loan spell, Bosnian international midfielder Muhamed Besic (turning 26 next September 10), currently on a deal with Everton until June 2021, is getting more and more likely to join Middlesbrough back. Besides, according to Sky Sports UK, Boro might be soon welcoming another Toffees player, DR Congolese international winger Yannick Bolasie (29), previously linked to a Crystal Palace move back.
Source: transfermarketweb.com