21-Year-Old Defender 1. FC Köln Bundesliga
Chelsea have loaned Kalas to Bundesliga side FC Koln for the 2014-15 season, Bundesliga.com reports.
Kalas has spent the last two seasons on loan at Vitesse in the Netherlands, but will now get a chance to show what he can do in Germany. He is only 21 years old, so the goal now is to get enough first-team football so that he's prepared for the Blues in 2015.