Celtic captain Callum McGregor is no stranger to a derby against Rangers and has approached these matches in a variety of situations. Thankfully for him and Celtic, the outcome has often been a good one with 19 wins under his belt against the Ibrox side during his time at the Bhoys. After recent setbacks against Kilmarnock and Hearts, there is undoubtedly more scrutiny on the team and the club in general going into this one. However, it seems the hurt of those experiences is now fuelling a steely determination within the Celtic dressing room to prove they are better than those performances sug…