Alexander Ross Dickerson (born May 26, 1990), nicknamed "Grandpa",[1] is an American professional baseball left fielder who is a free agent.

In college at Indiana University he was a unanimous selection as the 2010 Big Ten Conference Baseball Player of the Year.

[3][4] The Washington Nationals selected Dickerson in the 48th round of the 2008 Major League Baseball draft.

[6][7][8] Dickerson had a breakout season as a sophomore, slugging .805 (8th in the nation) and winning the Big Ten Triple Crown by leading the Big Ten in batting average (.419), home runs (24; second in the nation), and runs batted in (75).

[5][6][9] He was named the Big Ten Conference Baseball Player of the Year, and earned first-team All-American honors.

[13][5][14] Dickerson spent the 2012 season with the Bradenton Marauders, where he batted .295/.353/.451 with 31 doubles (4th in the league), 13 home runs (7th), and 90 RBIs (2nd) in 488 at bats and was named the Florida State League Player of the Year, a post-season All Star, and an MiLB organization All Star.

[19] On November 25, 2013, the Pirates traded Dickerson to the San Diego Padres for Jaff Decker and Miles Mikolas.

[16][25] On August 6, 2015, Dickerson made his Major League debut with the San Diego Padres with a pinch-hitting appearance in the 8th inning.

[26] The next day, Dickerson collected his first Major League hit with a pinch single in extra innings.

[27] A tweaked hip flexor limited his playing opportunities,[22][28] but Dickerson appeared in eight more games as a pinch hitter, and once as a defensive substitute in left field.

[30] He made his first Major League start in left field the following day, but was returned to El Paso on May 14.

Dickerson had his contract selected to the major leagues on May 3, 2019, but after 19 at bats with the Padres was designated for assignment on June 5.

[39] He played 82 games in left field, and his range factor per 9 innings of 1.78 was the fifth-best in the National League.

[39] On November 22, 2021, Dickerson was designated for assignment by the Giants to make room for pitcher Anthony DeSclafani.

[42] On March 16, 2022, Dickerson signed a non-guaranteed, major-league contract worth $1 million with the Atlanta Braves.

[16] On May 12, 2023, Dickerson signed with the Long Island Ducks of the Atlantic League of Professional Baseball.

On October 26, 2024, the Dragons announced they would not bring Dickerson back for the 2025 season, making him a free agent.