Expectations are so high that, even in the course of one tournament, a yokozuna who early on appears to be headed for a losing tournament will feel the pressure to retire. It is common and expected for a yokozuna to withdraw from a tournament with a real or imagined injury to avoid a make-koshi (a losing record) and the expectation to retire. These expectations are a large part of the reason that the promotion criteria for yokozuna are so strict in the first place. Notices In extremely rare instances the Yokozuna Deliberation Council can, with over two-thirds of the members in favor, issue notices to yokozuna whose performance as well as poise and character are contrary to what is expected of the rank. These notices are, in increasing level of severity: Notices have been issued three times since the council's inception in 1950: January 2010: Recommendation to Retire issued to Asashōryū.The recommendation was issued following allegations that Asashōryū punched and injured an acquaintance in a drunken brawl at a nightclub during the January 2010 tournament. It has been suggested in the media that Asashōryū chose to retire before the Sumo Association could follow through on the council's recommendation. November 2018: Encouragement issued to Kisenosato.Kisenosato lost his first five matches in the November 2018 tournament before withdrawing. Prior to that, he had withdrawn (either partially or fully) without a winning record in eight out of ten tournaments as yokozuna. The withdrawals were due in part to injuries suffered at the end of his winning tournament run in March 2017. He eventually retired from the sport after three consecutive defeats in the January 2019 basho. November 2020: Warning issued to two yokozuna, Hakuhō and Kakuryū.According to the council, both wrestlers did not perform to the level required of the yokozuna rank between November 2019 and November 2020. In that timeframe, Hakuhō sufficiently performed three times (yūshō in November 2019 and March 2020, plus a 10-win performance in July 2020) while Kakuryū sufficiently performed just once (runner-up in March 2020 with 12 wins). Both of them sat out of the September 2020 and November 2020 tournaments due to injury.The warning to Hakuhō and Kakuryū was upheld in March 2021. Kakuryū sat out for two additional tournaments since the warning was first issued, eventually retiring during the March 2021 basho. After sitting out of the January 2021 tournament due to COVID-19, Hakuhō won two