Birmingham manager Lee Clark said his side must look to feed off any tension that they feel around the King Power Stadium tonight.
Clark said the recent form that Nigel Pearson's Leicester City side have shown might make for a nervy home crowd tonight.
The fans will know how important a win for City will be, and Clark wants his side to exploit that.
"There will be a bit of tension around the place because Leicester and Nigel will be thinking they have to win every game because it is so tight," said Clark.
"I know how he works anyway and he always goes out to win every match. We need to use that in our favour.
"We have to make sure we use that bit of tension around the place to our benefit."
Clark, who worked with Pearson when they were together at Newcastle, said he had been impressed with City when the Blues needed a late equaliser to snatch a point against them at St Andrew's earlier in the season.
"When we played them earlier in the season, I thought they were one of the best teams we had faced," said Clark.
"They had good, young players who moved the ball around quickly and they had high energy. It was a good game.
"They have had a dip in form and players at whatever level lose a bit of confidence when that happens.
"But I watched the DVD of their game at Brighton and I thought they were excellent.
"They will be kicking themselves they didn't win the game. So they may have got some confidence back.
"They have got good players and I like the way Nigel has recruited the players.
"I know quite a few of them and, if I'd had a penny or two, some of them might have been on my radar.
"They have a good squad and a very good manager, a good coach. I know he is a good coach because I have worked with him."
The Blues have been more successful on the road than at St Andrew's since the turn of the year, with just one defeat from their last eight away games, and they hammered Crystal Palace 4-0 at Selhurst Park on their last away trip.
