Tony Mowbray insists he has no concerns with his side's home form despite Celtic's Scottish League Cup quarter-final defeat by Hearts leaving him with only two wins in nine attempts at Celtic Park since taking over from Gordon Strachan in the summer.

Jambos midfielder Michael Stewart, booed by his own fans during Saturday's goalless draw against Falkirk in the Clydesdale Bank Premier League, put the visitors ahead from the spot in the 58th minute after Hoops left-back Danny Fox had tripped Christian Nade inside the Celtic box.

However, once again in front of their own support, albeit a vastly reduced crowd of around 20,000, Celtic missed numerous chances before the final whistle brought a crescendo of boos down on the home players.

"The performances will suggest if it (home form) becomes a problem and I didn't see a lack of belief in the team tonight," the Celtic manager said. "I think we would be concerned if we weren't making chances but we are making chances every game we play and it will click."

"I've seen a very positive team playing against a team who deserve credit for defending as well as they did. I don't think you can blame bad luck. Sometimes you don't get what you deserve in football. But when the chances come we have to be more clinical."

Opposite number Csaba Laszlo, meanwhile, admitted his team enjoyed a share of good fortune in coming away with the spoils: "This was a very important win. We had also a little bit of luck," said the Hearts boss.

"I think the communication between (centre-backs) Ismael [Bouzid] and Jose [Goncalves] was not the best today. But in football, you must score goals and we scored one more."

Laszlo added: "Last season, we flew very early out of the cup. Now we've come to the best four. I hope in the (semi-final) draw we'll have a bit of an easier opponent."