Chelsea have agreed a deal with Middlesbrough to send defender Tomas Kalas on loan to the Championship club, reports Goal.
Middlesbrough manager Aitor Karanka is taking advantage of his close friendship with Jose Mourinho by plucking the best of Chelsea's young talent. Kalas will become the fourth Blues starlet to make the move to the Riverside this season.
Patrick Bamford, Kenneth Omeruo and Jamal Blackman have all played for Middlesbrough this season helping them in their bid for promotion to the Premier League. There is also reported interest in 19-year-old midfielder Lewis Baker.
Kalas should be a confirmed Middlesbrough player within 48 hours and will spend the rest of the season at the Riverside. He should help compensate for a growing injury crisis at Middlesbrough with Damia Abella and Ryan Fredericks injured and Emilo Insue set to leave for the African Cup of Nations.
Bamford has been the most prominent of the Blues players this season with the 21-year-old bagging seven goals in the league so far. Middlesbrough recently agreed an extension to his loan deal despite interest from other clubs.
Chelsea decided to reject a late offer from Premier League club Sunderland, possibly because Karanka shares a close relationship with Mourinho. The head coach was assistant to Mourinho at Real Madrid.
Kalas, a Czech Republic international, is highly rated at Stamford Bridge and has made two appearances for the club since joining in 2010. A two-year loan spell at Vitesse saw him become an integral part for the team.
However, a similar loan spell at Bundesliga club Cologne has failed to reap the same reward. He has yet to make a single appearance since joining in the summer and will return to complete a move to Middlesbrough.
He was linked with a move to Queens Park Rangers earlier this season but it seems life at a club that are winning on a regular basis is the preferable option for the youngster.
The deal is likely to be a platform for another deal involving Baker, who is a highly-rated England youth international.