MIDDLESBROUGH'S summer of change is set to continue with one in and one out ahead of Saturday's visit of Sheffield United.

Dutch midfielder Marten de Roon has been given the go-ahead to complete a return to Atalanta after Boro accepted an offer of 15m euros.

And he is set to be replaced in Garry Monk's squad by Chelsea midfielder Lewis Baker. The 22-year-old is heading to Teesside on a two-year loan from Stamford Bridge.

Baker has had spells with Sheffield Wednesday, MK Dons and Vitesse and has been given permission to leave the Bridge for another extended loan stint.

He fits the criteria of being young and hungry which Monk has spoken of introducing to his squad.

And the departure of de Roon comes just 12 months after he left the Serie A club to try his luck in the Premier League.

Middlesbrough paid 10m euros for the Holland international last year, so his pending sale sees the club make a profit.

The 26-year-old has been the subject of interest from a number of clubs since January, with Watford and even Manchester United linked.

But Atalanta have shown the most interest and, after plenty of negotiating, he is now set to return to the club where he really made his name.

Monk is still looking to add further to his squad before the transfer window closes. He is still keen on Birmingham defender Ryan Shotton.