Seager is the No. 3 seed and will face off with sixth-seeded rookie sensation Julio Rodriguez of the Seattle Mariners in the first round. Pujols is the No. 8 seed and will face off with top-seeded Philadelphia Phillies slugger Kyle Schwarber, the National League home run leader, in the first round.
Fourth-seeded Washington Nationals DH Juan Soto and fifth-seeded Cleveland Guardians third baseman Jose Ramirez will face off in the other first-round Derby matchup.
The winner of the Schwarber-Pujols matchup faces either Soto or Ramirez in the second round. On the other side of the bracket, the Alonso-Acuña winner faces the Seager-Rodríguez winner. The two players left standing will meet in the final round.
Seeds were based on the number of home runs each player had hit by Thursday, when the Derby field was announced. The higher-seeded player will bat second in each single-elimination round.
The popular timed-competition format was instituted in 2015. Batters will have three minutes to hit as many home runs as possible in the first and second rounds, and two minutes in the final round.
Each batter gets an extra 30 seconds after regulation time expires. Batters can earn an additional 30 seconds if they hit at least one home run that equals or exceeds 440 feet, as measured by Statcast. Batters are entitled to call one 45-second timeout per round. Ties will be broken with a 60-second swing-off, if necessary.
The switch from each player having 10 outs to a timer has had its desired effect, with balls leaving the yard at a prodigious rate.
The final year of the 10-out format over four rounds in 2014 saw a combined 78 home runs among 10 players. When MLB went to an eight-player bracket and timed format the following year, the total nearly doubled to 159.
Last year at Denver’s Coors Field saw 309 homers, including 208 in the first round. The high-water mark is 311 from 2019 in Cleveland.
The total prize pool is $2.5 million, of which $1 million goes to the winner. Players will be mic’d up during the Derby, but there won’t be any cameras on their caps or on the catcher.
ESPN has the exclusive television rights to the Derby. An alternate broadcast will air live on ESPN2. The Dodgers’ Hall of Fame broadcaster Jaime Jarrín, who announced he will retire at the end of this year, has the Spanish radio play-by-play duties.
The Associated Press contributed to this story.