The Blues boss is understandably keen to return to winning ways after successive defeats against Cardiff City and Huddersfield Town.
Although both matches were lost by a single goal, it was the level of performance against The Terriers that disappointed Clark most, especially following an encouraging display in South Wales.
Consequently the likes of Marlon King, Morgaro Gomis and Darren Ambrose, who have missed out on first-team action in recent matches, could all come into the reckoning for the visit of the Foxes.
“Over the next couple of weeks everybody will be fighting for a place against Leicester,” the Blues boss told bcfc.com.
“Even though there were positives to take from our performance against Cardiff, we were disappointed to lose the last two games.
“The lads that possibly haven’t been involved have all got a chance to stake a claim and there are place up for grabs. But they’ve all got to be doing it on the training pitch first and foremost. Players get judged all time on how they train everyday and how they go about their business.”
One player who has not made the matchday squad in Blues’ last three outings is Ravel Morrison (pictured), But Clark says the on-loan West Ham midfielder is still very much in his plans and he is confident the 19-year-old knows what is required to regain his place.
Clark continued: “I had a good chat with Ravel this week and he knows where he wants to be and he knows how he’s got to get there.
“We brought him in because he’s a talented young man, but there’s more than talent that gets you in the team. Ravel understands that and he’s going to be working extremely hard over the coming weeks to get that sorted.”