Referee Craig Maxwell-Keys & Ashley Rowden (R) discuss Rhys Gill of Saracens while reviewing the video footage for a spear (tip) tackle - he then changed his yellow card to a red and sent off Gill Harlequins v Saracens - Aviva Premiership - Twickenham Stoop - 09/01/2016 - London - UK Mandatory Credit: Andrew Fosker / Seconds Left Images