 He was a key figure in league campaigns, such as the 1985–86 Scottish Premier Division which Celtic won in the last game of the season, the 1987–88 where Celtic clinched the league and cup double in their centenary season, and the 1989 Scottish Cup Final against Rangers.Grant played in the 1989 final having missed the 1988 final due to injury.Celtic would experience a barren period after 1989, consistently failing to challenge for silverware and almost going bankrupt in 1993.