Signed from Championship side Wolverhampton Wanderers in 2014, the centre-forward has gone on to make 178 appearances in all competitions, scoring an impressive 97 goals.
The 27-year-old hasn’t been in his best form this season, however, and only recently returned from a calf injury that kept him out for two months.
At his best, Griffiths is arguably Scotland’s most lethal striker, having scored 40 goals in 2015-16 under former Hoops boss Ronny Deila.
He’s only registered eight in 20 Scottish Premiership appearances this season but is certain he will be “back to his best” in 2018/19.
“I am hoping the best is still to come. With the muscle being released now and unblocked it is going to give me a lot more movement in my legs.”
“Hopefully working with manager and fitness staff means that come pre-season I will be flying and back to my best.”
The Scotland international’s injury update is precisely what fans wanted to hear. Moussa Dembele looks unlikely to remain at Celtic for a third season and therefore a fully-fit Griffiths is needed to replace him.
Nevertheless, it’s very encouraging Griffiths isn’t resting on his laurels and acknowledges this season hasn’t gone to plan.