HITC Sport understands that Boro are hoping to finalise deal for Marten De Roon this week.
Italian sources have confirmed to HITC Sport that deal which could be worth up to £12 million including add-ons has been agreed between the two clubs.
Reports linking the 25-year-old midfielder with a move to England, first emerged earlier this summer and now Boro are understood to have pushed ahead with a move for the player.
Marten De Roon
Boro are keen to bolster their midfield options and are believed to have pushed ahead with their move for De Roon after they failed to agree terms with former midfielder James Morrison, who is set to re-sign with West Brom.
The club still remain interested in another ex-star in Lee Cattermole, currently at Sunderland, but that deal will not be as straightforward for the one for De Roon and Boro could complete that deal this week - as long as no rival interest materialises, as Serie A giants Napoli had been linked.
De Roon only joined Atalanta from Dutch side Heerenveen last year but impressed hugely during his debut campaign in the Italian top-flight. HITC Sport understands that De Roon has spoken to former Middlesbrough winger Yanic Wildschut about life on Teesside, as they played together in Holland, and he gave a glowing reference about his ex-club - despite the fact he never really made the breakthrough at The Riverside.
Middlesbrough's Gaston Ramirez in action with Leeds' Toumani Diagouraga
Boro have already been busy this summer securing the signing of Ajax's Viktor Fischer and Bernardo from Sporting Gijon, whilst they have also agreed terms with loan star Gaston Ramirez - who will sign on a free transfer subject to a work permit.
Uruguay midfielder Ramirez spent the second half of the season on loan from Southampton and played a huge part in their promotion.
Boro have fended off interest from Europa League winners Sevilla to persuade him to sign a permanent deal with the club, after also ironing out a possible pre-contract with Penarol - which proved not to be the case.