As fans gathered inside Oakland Coliseum for Opening Day on Thursday, thousands more stood in the parking in protest of the Oakland Athletics' ownership.
Per ESPN's Tim Keown, fans waved "SELL" flags while eating free tacos and enjoying live music, staying in the parking lot during Oakland's Opening Day matchup with the Cleveland Guardians.
The announced attendance for the game was 13,522—about 21 percent of Oakland Coliseum's capacity.
The move, which fans are reportedly calling "Summer of Boycott," comes as the A's begin what could be their final season in Oakland. Major League owners voted unanimously to approve the A's move to Las Vegas and the team's ownership is targeting a 2028 opening for a new stadium.