1873 was the 87th season of cricket in England since the foundation of Marylebone Cricket Club (MCC). In only their fourth season as a first-class team, Gloucestershire was proclaimed joint Champion County by the media and went on to claim the still unofficial title four times in five seasons (1873, 1874, 1876 and 1877).
Player qualification rules came into force, with players having to decide at the start of a season whether they would play for the county of their birth or the county of residence. Before this, it was quite common for a player to play for two counties during the course of a single season, with by far the best-known case being star slow bowler James Southerton who played for his birth county Sussex when they had a match on and otherwise for Surrey. It is only since the residence qualifications were introduced that any quasi-official status can be ascribed to the oft-claimed Champion County title.[1]