and future expansion The league has found the stability it lacked in the 90s, and has managed to sustain 16 teams for almost two decades, although some teams have relocated, and attendance has been inconsistent, though has rebounded in the latter part of the 2010s with the opening of new ballparks and greater stability. This led to unanimous approval for expansion to 18 clubs. Despite having cancelled the 2020 season due to the COVID-19 pandemic, in December 2020, Mexican President Andrés Manuel López Obrador announced the addition of two expansion teams to the league: El Águila de Veracruz and the Mariachis de Guadalajara. The league officially approved the additions on 26 January 2021. Uniforms In contrast to the Major Leagues in which teams commonly wear a white uniform at home, and a grey one for away games, with team-color jerseys only worn as alternates, Mexican League teams use a colored option as their regular road jersey, a practice started in the 1970s to attract larger crowds and make teams more recognizable. Season structure The current LMB regular season, consisting of 120 games per team, typically begins in late March or early April. Each team's schedule is typically organized into three-game series. Postponed games or continuations of suspended games can result in an ad hoc one-game or five-game series. A team's series are organized into homestands and road trips that group multiple series together. Teams generally play games five to six days per week, commonly having Monday or Sunday as an off day. Frequently, games are scheduled at night. Sunday games are generally played during the afternoon. In addition, teams will play day games frequently on Opening Day, holidays, and getaway days. Each team plays either six or nine games against each opponent. All-Star Game In mid-to-late July, just after the midway point of the season, the LMB All-Star Game is held during a four-day break from the regular-season schedule. The All-Star Game features a team of players from the North Zone, led by the manager of the previous North Serie del Rey team, and a team of players from the South Zone, similarly managed, in an exhibition game. It has been held consistently since 1942 and from that year up until 1971 a team of foreign players battled it out against a team of Mexicans. The first all-star game took place on August 29, 1939, in the since-demolished Delta Park