Arizona Diamondbacks in The
Arizona Diamondbacks selected Pollock in the first round of the
2009 MLB draft. He was chosen as a compensation pick from the
Los Angeles Dodgers for the signing of
Orlando Hudson. The Diamondbacks invited Pollock to
spring training in 2010. He broke his right elbow while attempting to make a diving catch. Pollock missed the entire season due to the injury. In 2011 he played for the
Mobile BayBears. He batted .307/.358/.444 in 550 at-bats with 103 runs (leading the
Southern League), 41 doubles (third), 36 steals (third), and nine sacrifice flies (third). Batting as a pinch hitter for
Justin Upton, Pollock collected his first career MLB hit, a single, on April 23 against the Phillies. He played in 31 games that season for the Diamondbacks, batting .247/.315/.395 in 81 at bats with two home runs and eight RBIs. Up to that point in the season, he was batting .302.353/.498 with 14 stolen bases in 17 attempts in 265 at-bats. He ended the season batting .315 (third in the NL)/.367/.498 in 609 at bats with 22 runs (second in the NL), 39 doubles (third), six triples (sixth), 20 home runs, 76 RBIs, 39 stolen bases (third), an 84.8% stolen base success rate (sixth), and eight sacrifice flies (second), playing 151 games in center field. He led the National League in
power-speed number (26.4). He came in 14th in voting for NL MVP. He also won a Gold Glove. Pollock broke his right elbow again at the end of spring training, this time on a slide at home plate, and missed most of the 2016 season. Over the course of 112 games in 2017, Pollock batted .266/.330/.471 in 413 at-bats, with six triples (ninth in the NL), 14 home runs, and 49 RBIs, playing center field. On April 30, 2019, the Dodgers placed Pollock on the injured list with a right elbow inflammation. In September, the Dodgers moved Pollock to left field for the rest of the season. For the season he appeared in 86 games, batting .266/.327/.468, with 15 homers and 47 RBIs. The 2020 season was shortened because of the
COVID-19 pandemic, but Pollock played in 55 of the Dodgers' 60 games. On September 16, Pollock hit his 100th career home run, off of
Adrián Morejón of the
San Diego Padres. He batted .276/.314 (a career low)/.566 (a career high) with 16 home runs (third in the NL), 12.3 at bats per home run (fifth), and 34 RBIs. Pollock received player of the week for July 5–11, 2021, during the week he had a four-game hitting streak while batting .391/.462/1.043 with three doubles, four home runs and four RBIs. For the 2021 season Pollock batted .297/.356/.537 in 384 at bats with 27 doubles, 21 home runs, 69 RBIs, and nine steals (while being caught once), while playing 103 games in left field and eight games in center field. Overall in 2022, Pollock appeared in 138 games hitting to a .245 average with 14 home runs and 56 RBIs. On November 8, Pollock declined his option for the 2023 season and became a free agent.
Seattle Mariners On January 12, 2023, Pollock signed a one-year, $7 million contract with the
Seattle Mariners. Prior to the trade, Pollock appeared in 49 games for Seattle, batting .173/.225/.323 (all career lows), with five homers and 15 RBIs.
San Francisco Giants On July 31, 2023, Pollock and
Mark Mathias were traded to the
San Francisco Giants in exchange for cash considerations or a
player to be named later. Pollock went hitless in five games for the Giants before he was released by the team on September 5. ==International career==