Seager, 20, one of the Dodgers' two representatives at Sunday's Futures Game, batted .352 with 18 home runs in 80 games at Class A Rancho Cucamonga. He led the California League with 34 doubles, a .633 slugging percentage and a 1.044 OPS.
Seager said he would report to Chattanooga on Thursday. The Dodgers granted him permission to stay in Minnesota beyond Sunday, so he could watch his brother -- Seattle Mariners third baseman Kyle Seager -- play in Tuesday's All-Star Game.
Pitcher Julio Urias, also selected for the Futures Game, ranks atop Baseball America's midseason ranking among position players. Seager is second, followed by outfielder Joc Pederson.
Pederson played in the Futures Game last season. Baseball America editor John Manuel, who helps select the Futures Game rosters, said Pederson was considered but each team is limited to two selections, except for the team playing host to the All-Star Game.
The game will be broadcast on MLB Network at 2 p.m. PDT Sunday.