After Riccardo Calafiori scored a stunning equaliser for Arsenal, several Manchester City players approached referee Michael Oliver in opposition in protest. The experienced referee seemed to call both sets of captains on the day in Kyle Walker and Bukayo Saka over to calm their respective sides down in what was an intense affair on Sunday. However, Arsenal capitalised on Walker being out of position and took a quick free-kick. As the ball was headed in Gabriel Martinelli’s direction, the Manchester City right-back protested against Michael Oliver’s decision to allow play to progress after cal…