A man handed a shock debut in the English top-flight by Jose Mourinho back in April, as Chelsea helped to dash Liverpool’s title dreams at Anfield, was allowed to leave Stamford Bridge over the summer in pursuit of regular competition.
A season-long agreement took him to Germany, but things have not gone to plan for the 21-year-old Czech Republic international.
Koln’s reluctance to award him the opportunities he craves has led to Chelsea negotiating his early release, with Kalas due to return to his parent club in January.
He is, however, still some way down the pecking order with the Blues when Mourinho has a fully fit squad from which to select, so another short-term deal elsewhere has been discussed.
Queens Park Rangers are among those looking for defensive reinforcements, with Harry Redknapp’s men having conceded more goals than any other top-tier side so far – 23 in 12 games.
Kalas may not boast the experience of Rio Ferdinand, Richard Dunne or Steven Caulker, but he could be a useful addition as QPR look to mix things up by bringing in more mobile and youthful options.
Interest has been expressed from Loftus Road, but Redknapp will face competition from the Dutch Eredivisie so needs to move quickly if he is to get his man.
Kalas’ agent Viktor Kolar told isport.blesk.cz: "We have been negotiating the situation surrounding Tomas Kalas and there are a number of options from the United Kingdom and the Netherlands. One of them indeed is Queens Park Rangers.
"We want Tomas to play regularly and would like to have his future sorted out before the start of the transfer window, so that the matter is concluded to the satisfaction of all parties concerned.”
Kalas has also admitted that ‘a change must come in the winter’ as he grows increasingly disillusioned with life on the bench at Koln.
His frustration is understandable, with his assured display at Anfield seemingly setting him up for a bright future.
Chelsea would also have been looking for his potential to be further unlocked during a spell away from west London and will be disappointed to have seen a deal which promised much, deliver very little.
Time is still on Kalas’s side, though, and he just needs to remain patient as he – along with fellow youngster Kurt Zouma – seek to prove that they can be long-term centre-half solutions at Stamford Bridge.