London's "Chelsea" has announced that Czech defender Tomas Kalas has signed a new three-year contract with the club.
The center-back from the Czech Republic spent the second part of last season on loan at the "Middlesbrough" team.
Since joining the "aristocrats" in 2010, Kalas has only made two appearances in the "Premier" league.
The 22-year-old footballer, who plays in the second division for "Middlesbrough," will spend another year there. However, the defender will have the opportunity to impress coach Jose Mourinho, as the team plans to fight for the top spots in the "Championship."
