Kris Bryant, the Chicago Cubs All-Star rookie third baseman, has the most popular player jersey in all of Major League Baseball for the 2015 season. The 23-year-old Bryant, who made his Major League debut on April 17, becomes the first rookie and youngest player ever to lead this list since MLB and the MLBPA began releasing jerseys sales rankings in 2010.

The Cubs, who begin Postseason play Wednesday night against the Pirates in the National League Wild Card Game, are also represented on the list by All-Star first baseman Anthony Rizzo (#8). The list is based on sales of Majestic jerseys from MLB.com/shop, the official online shop of Major League Baseball, since Opening Day 2015.

After Bryant on the list, released jointly today by Major League Baseball and the Major League Baseball Players Association, is Madison Bumgarner (#2), Buster Posey (#3), Clayton Kershaw (#4) and Mike Trout (#5). The average age of the top 10 players on this season’s list is the youngest it has ever been, at 26 years old, with six of the top 10 being 26 years of age or younger. Five of the top 10 players on the current list will participate in this year’s Postseason.

Players representing 13 different Clubs make up the top 20 most popular player jerseys, which includes eight infielders, four outfielders, two catchers, five pitchers and one DH.