Celtic manager Brendan Rodgers is unsure over when striker Leigh Griffiths will return to first-team action.

Griffiths has been out since the end of January after picking up a knock in the clash against Hibernian.

The forward pulled up with a calf injury moments after scoring the winning goal against Hibs.

He has 11 goals in 16 starts for Celtic this season, after scoring 18 goals in 35 appearances last campaign.

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His best season for Celtic came in the 2015/16 season, when he netted 40 goals in 51 appearances, including 31 in the league.

Speaking to The Evening Times, Rodgers said this:

He is still out but he is responding to treatment. I am not 100% sure when he will be back.

It is unfortunate. He got into a good little rhythm there and then broke down. It was unfortunate bit you seen his frustration the day it happened and there is no-one more frustrated than him.

He had come into the team just after having to sit out because he had come back from Dubai and was due to start but was injured for that game [Brechin] so we just have to deal with it.

Griffiths was recently in court and charged with a speeding offence after he was caught going over the speed limit in his Mercedes.