grand champion filling the rank of champion to keep their number at two
Sumo term. When there is only one yokozuna, the highest-ranked ozeki is temporarily treated as a yokozuna for ranking purposes to maintain the traditional two-yokozuna format on the banzuke.
In a tournament with only one yokozuna, a yokozuna-ozeki may be established.
The highest rank in sumo; 横綱大関 is a special designation for an ozeki who is treated as a yokozuna for ranking purposes when there is only one yokozuna.
The second-highest rank in sumo; 横綱大関 is an ozeki who is temporarily elevated to yokozuna status on the banzuke.
Compound of 横綱 (yokozuna, 'grand champion') and 大関 (ozeki, 'champion'), referring to an ozeki who is treated as a yokozuna for ranking purposes.