A mass brawl / fight breaks out between virtually all the players on the pitch here George Merrick of Harlequins grabs Calum Clark of Saracens around the neck with Alofa Alofa of Harlequins (R) Harlequins v Saracens, Aviva Premiership, Rugby Union, Twickenham Stoop, London, UK - 03 Dec 2017 Credit: Andrew Fosker / Seconds Left Images