Complex sentence: One of the most notable players of St. George's was Emmanuel Balolu Busuttil, the only player to captain the St. George's side to their only championship in the 1916--17 season.
Split into simpler sentences: One of the most notable players of St. George's was Emmanuel Balolu Busuttil. He was the only player to captin the St. George's side to their first and only championship in the 1916/17 season.