Cardiff City's failure to put away their chances cost them another two points after they were held to a scoreless draw at Ninian Park.
They struck the visitors woodwork three times but were unable to beat Foxes keeper Kevin Pressman who made several superb saves to keep his side in the game.
The Bluebirds were dealt a blow before the start when Peter Thorne failed a fitness test and Paul Parry moved up from midfield to partner Alan Lee.
Cardiff went on the attack in the fourth minute and Joe Ledley sent Lee racing down the left wing. His cross was met by Parry but the Wales international's shot was deflected by Pressman for a corner.
In a frantic opening both sides had chances to score with Lee prominent for the Bluebirds, while Dion Dublin and David Connolly were looking sharp for the visitors.
A free-kick in the 26th minute almost brought the Bluebirds the lead.
Scot Gemmill fouled Graham Kavanagh just outside the area and Gary O'Neil's flighted free-kick brushed the crossbar with Pressman well beaten.
Lee was just wide with another header after Ledley had made a good break before crossing from the left flank.
Cardiff continued pressing and Matt Elliott was forced to head a curling centre from O'Neil over his own crossbar.
Three minutes before the interval Parry raced through and struck a vicious shot that beat Pressman all ends up only to rebound off the base of the post. Lee rushed in but his strike was safely gathered by keeper.
Dublin had a close-range header pushed away by Tony Warner four minutes after the restart.
Play was going from end to end and it was surprising that neither side had made the breakthrough in a pulsating match.
Danny Tiatto followed Dublin into the book after he brought Jobi McAnuff down when the former West Ham player was in full flight.
With an hour gone Dublin was replaced by former Cardiff legend Nathan Blake and ten minutes later Keith Gillespie entered the fray as new Foxes manager Craig Levein sensed his side could snatch an unlikely victory.
Almost immediately the ball broke to Kavanagh and his rasping shot looked destined to find the top corner before Pressman brilliantly palmed it away.
Then it was Leicester's turn as a Connolly header was going in before Daniel Gabbidon raced across the goalline to head clear.
The Leicester woodwork was rattled for the third time when the impressive O'Neil curled a shot past Pressman, but despite all their good work the Bluebirds were unable to get the goal their performance deserved.
External reports
Wales on Sunday