Kieran Tierney is unsure why Celtic struggled at the start of the season but feels they have now rediscovered their form.

The Glasgow giants won a domestic treble for a second successive campaign last term but managed just three wins in their opening six Premiership games this season.

The Parkhead also failed to qualify for the Champions League but did secure a spot in the Europa League. Celtic face a real battle to reach the knockout stages in the European tournament after picking up just three points from nine available so far, but Tierney feels they are now back on track after their lacklustre start.

He told the Daily Record: “Even at the start of the season it was hard to say things had even changed. “What we do in training over the last two years, nothing has changed.

“We just do what we do and eventually things have clicked back into place. The last few games we’ve played very well and you’re hoping that can last. “Everyone mentioned the start we’ve had wasn’t the best, we know that.

But it appears we’re moving in the right direction now.” Celtic can pick up some silverware in December when they face Aberdeen in the League Cup final.

The Hoops may face a battle to retain their Premiership crown however as they trail current leaders Hearts by six points, although they do have a game in hand.

Celtic are 1.44 to win the Premiership outright, Hearts can be backed at 15.00 and second placed Kilmarnock are 126.00.