The former World Boxing Organisation featherweight champion will make his long-awaited comeback on Friday night, at the Kelvin Hall, after 6½ years out of the ring, when he faces the French-Algerian Brahim Bariz.
"Boxing is in my heart and that never changed even when I was in prison," said Harrison. "I always wanted to fight again one day and now I have that chance. To fight on Friday night will be an absolute honour and, given everything at stake, there are a little bit of nerves for me.
"But the buzz has been there again in the build-up. Boxing means the world to me and that has been a motivation when things have not been good outside the ring. I need to deliver against Bariz but ultimately I want a fight with any of the lightweight world champions, be that Ricky Burns or anyone else. The first step is Bariz."
n Tickets £100 ringside, £60, £45 and £30. 0141 554 7777/0000.