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GLOUCESTER, ENGLAND - SEPTEMBER 29: Paul Gustard, Head Coach of Harlequins during the Gallagher Premiership Rugby match between Gloucester Rugby and Harlequins at Kingsholm Stadium on September 29, 2018 in Gloucester, United Kingdom. (Photo by Harry Trump/Getty Images)

GLOUCESTER, ENGLAND - SEPTEMBER 29: Paul Gustard, Head Coach of Harlequins during the Gallagher Premiership Rugby match between Gloucester Rugby and Harlequins at Kingsholm Stadium on September 29, 2018 in Gloucester, United Kingdom. (Photo by Harry Trump/Getty Images)