teams began the practice of having two different uniforms, one for when they played at home in their own baseball stadium and a different one for when they played away (on the road) at the other team's ballpark. It became common to wear white pants with a white color vest at home and gray pants with a gray or solid (dark) colored vest when away. By 1900, both home and away uniforms were standard across the major leagues. In June 2021, MLB announced a long-term deal with cryptocurrency exchange FTX, which includes the FTX logo appearing on umpire uniforms during all games. FTX is MLB's first-ever umpire uniform patch partner. On November 11, 2022, FTX filed for Chapter 11 bankruptcy protection. Season structure Spring training Spring training is a series of practices and exhibition games preceding the start of the regular season. Teams hold training camps in the states of Arizona and Florida, where the early warm weather allows teams to practice and play without worrying about the late winter cold. Spring training allows new players to compete for roster and position spots and gives existing team players practice time prior to competitive play. The teams that hold spring training in Arizona are grouped into the Cactus League, while teams that hold camp in Florida are known as the Grapefruit League. Spring training has always attracted fan attention, drawing crowds who travel to the warmer climates to enjoy the weather and watch their favorite teams play, and spring training usually coincides with spring break for many college students. Autograph seekers also find greater access to players during spring training. Spring training typically lasts almost two months, starting in mid-February and running until just before the season-opening day, traditionally the first week of April. As pitchers benefit from a longer training period, pitchers and catchers begin spring training several days before the rest of the team. Regular season Each team plays 162 games per season. A team's schedule is typically organized into three-game series, sets of consecutive games against the same opponent, with occasional two- or four-game series. Postponed games or continuations of suspended games can result in an ad hoc one-game or five-game series. All games of a series are usually hosted by the same team and multiple series are typically grouped together. I.e, a team usually hosts several series in a row, called a homestand, and follows that by