Goalkeeper Craig Gordon has called on Celtic to use the feel-good factor from picking up a late victory against Rosenborg to get back to winning ways domestically.

Substitute Leigh Griffiths struck a last-minute winner as the Hoops defeated the Norwegian champions in their Europa League opener.

That result ensures Celtic currently top their Europa group, but in the Premiership they currently sit five points behind early pacesetters Hearts.

Gordon insisted the Scottish champions must take confidence from their European showing when they look to reduce the gap against Kilmarnock on Sunday.

"Sometimes that is the best way to win a game," he said. "Winning 2 or 3-0, sometimes that doesn't feel as good as that last minute goal.

"It's a good feeling, the dressing room was very happy with that and hopefully we can use that to spur us on in the next few games."

Asked if the Hoops can use that feel-good factor this weekend, he added: "Absolutely, that's exactly what we were talking about in the dressing room.

That was a great start in the group phase for us, now to take that forward into the league campaign and try and get a win at Kilmarnock."

Celtic looked fragile defensively early in the campaign but they have shored up at the back of late to put together a run of five straight clean sheets.

Gordon said he's delighted with the improvements the Hoops have made in defence to become a "very solid" unit.

At the other end of the park, the goals have also somewhat dried up though and the Scotland international said the focus must now be on improving in the attacking third.

He continued: "Early on we were conceding a few goals, we had to go back to the drawing board and look at a few things.

"We're starting to get that right, that is five clean sheets in a row.

"Now, we have to put that in to the attacking side of things and try and score a few more goals.

"We've looked very solid, regardless of who is playing in the centre of defence, for the last month or so.

"That gives the team and myself a lot of confidence, if we do get the goal we should win games."