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Celtic striker scored Leigh Griffiths his second goal in two games on Saturday, helping the Hoops step up their pre-season preparations with a 2-1 win over Austrian outfit Wiener SC.

Neil Lennon's side play FK Sarajevo in UEFA Champions League qualifying on July 9th, so time is running out to get up to the fitness required for the test against the Bosnian champions.

How can Celtic improve next season? A Hoops fan tells us how in the video below...

Griffiths missed the second half of last season after taking a hiatus from football but has wasted no time in getting back to what he does best - hitting the back of the net on a regular basis for the Scottish giants.

With Vakoun Bayo also getting on the scoresheet, Lennon now has a variety of options in the striker's position, with first-choice forward Odsonne Edouard yet to be unleashed in pre-season.

Celtic fans are delighted with the 28-year-old's progress, feeling he can still play a big part in the squad moving forward.

These supporters took to Twitter over the weekend to share their thoughts on his most recent contribution...