Celtic manager Ronny Deila has played down the injury that Leigh Griffiths suffered during the team's opening-day win over Ross County in the Scottish Premiership.

Griffiths was forced off at Celtic Park after scoring the Hoops' first goal from the penalty spot in their 2-0 victory on Saturday.

With the second leg of their crucial Champions League qualifier against Qarabag FK coming up on Wednesday, Deila is confident that the 24-year-old will be fit to travel to Azerbaijan.

"Leigh Griffiths should be back on Wednesday as his knock isn't serious," he told the club's official website. "It wasn't anything pulled, just a knock."

Griffiths scored 20 goals in 42 appearances for Celtic last season.