Warwick was a prop forward and started his career at Newtown, and was graded there in 1924. He played two seasons for them before moving with his family into the St. George district at Brighton-Le-Sands, [New South Wales]. As per the residential rule, his new club became St. George and he gave them three years of solid service. He retired from the club at the end of the 1929 season due to a contractual payment issue that involved the club and George Carstairs.