Alianza Lima has been the most successful Peruvian club in this century, having won five championships. At the end of 2020, Alianza was relegated to the second division, despite the fact that in that year all games were played in just Lima and Callao because of the COVID-19 epidemic and teams from the provinces were not able to use their home stadiums. As soon as the season ended, Alianza launched a campaign to try to remain in the first division. There was contention about the team that had finished one place above Alianza, Carlos Stein. The Peruvian FA gave them a fine. Alianza argued that this was not enough, since Alianza's interpretation of the regulation was that they should be docked points. The Peruvian Football Association disagreed explaining that both fines and point reductions were allowed and used with other teams during the competition depending on the level of infraction by the team , and confirmed Alianza’s relegation. Then, Alianza took their case all the way to Switzerland, to the International Court of Arbitration for Sport. Eventually CAS decided in favor of Alianza and the team was returned to the first division and Carlos Stein sent to the second division despite the fact that the new season (2021) had already kicked off, and Carlos Stein had played a match. Eventually, the regular 2021 season ended with a two legged play off against Sporting Cristal. Alianza beat Sporting Cristal in the first game 1-0 and tied the second game 0-0 to become the champions for 2021. Carlos Stein, meanwhile, came through a penalty shoot out at the end of a play off in the second division and won promotion back to the first division again for 2022. Alianza Lima finished in fourth place for the 2022 Torneo Apertura and first in the Torneo Clausura. Due to coming in second in the aggregate table, they received a bye in the semi-finals of the championship playoffs. Melgar beat Sporting Crystal 2-0 in each leg, coming out 4-0 winners on aggregate to set up a showdown with Alianza Lima for the 2022 Liga 1 title. The first leg was played in Melgar's stadium in Arequipa and Alianza lost 1-0 due to a Yordi Vílchez own goal. Yordi Vílchez made up for it by tying the series on aggregate with a header right before halftime in the second leg. Pablo Lavandeira then popped up to