The heart rates of Rangers supporters might just be returning to normal after what was a bonkers Old Firm derby v Celtic at Ibrox. Rangers fought back from 2-0 down only to be pegged back with minutes to play before Rabbi Matondo turned the Ibrox hero. Welsh international Matondo – just as he had against Hibs the week before – bent one beautifully into the top corner with the match finishing 3-3. The game means it’s as you were in the title tussle and here are the five burning questions as the dust settles on an epic Old Firm encounter. Did Philippe Clement get his starting XI wrong?Don’t lie,…