The Otters acquired utility man Andrew Penner via trade from the Washington Wild Things in June 2021. For the Otters, Penner batted .257 with 32 runs, 12 extra-base hits, 26 RBIs, and four stolen bases in 66 games played. He accrued only 19 at-bats in six games for the Wild Things in 2021. Penner played for the Frontier League Championship-winning River City Rascals in 2019, where he hit .282 through 90 games, clubbing 15 doubles and driving in 45 RBIs. Penner played collegiately at CSU Bakersfield 2017-2018 after attending Los Angeles Valley College. In two seasons with CSU Bakersfield, Penner hit .366/.445/.421, notching 56 RBIs in 432 at-bats. Penner is CSU-Bakersfield’s all-time leading hitter (.366) and on-base percentage (.445).