Bristol City manager Lee Johnson revealed his frustration at the injury to star centre-back Tomas Kalas to Bristol Live after the Millwall game on Tuesday.

The towering Czech Republic international signed a permanent deal with the club in the summer after being on loan last season from Chelsea, with the deal-making him the Robins' club-record signing in the region of £8 million.

However, the centre-back has struggled to make it out onto the pitch this season with just seven appearances to his name in all competitions, instead being forced to watch the majority of the season from the sidelines.

Bristol City have instead to contend with a defensive pairing of Ashley Williams and Nathan Baker at the heart of defence, with both having performed well as a partnership during their time on the pitch this season.

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On Kalas' injury, Johnson said: "Kalas is doing my head in to be honest, not him personally but the injury so I don’t even know how far he is.

"He was training for three or four days, probably was expecting to line him up in this one and then gets a whack on it and then the setback, I don’t know how long it is."

The physical presence of Kalas would have been an asset for the Robins against a physical Millwall side, as he could have helped prevent the second Lions goal, a free-kick which was headed in by centre-back Jake Cooper.

The Verdict

Losing one of your best defenders at any point during the season can be frustrating for any manager, let alone when he is unable to get back fit after suffering a setback or two in training.

The Czech Republic international suits Bristol City's style of play well and is capable of defending in the air or on the ground, often taking a 'no prisoners' approach when it comes to stopping the opposition.