Callum McGregor, Celtic and silverware are three words that directly correlate when discussing his career at Parkhead. The 31-year-old is now on 22 winners’ medals since breaking through to the senior side in 2014, and he hasn’t shown any signs of slowing down in his hunt for further trophies. McGregor encountered injury issues last term; nevertheless, he returned in time for the run-in despite the risks of doing so, driving home his untameable commitment to lead from the front and succeed on the pitch. Now one of the elder statesmen in the side, despite only being 31, his experience and know-…