Yonder Alonso (born April 8, 1987) is a Cuban former professional baseball first baseman and current MLB Network analyst.

He played in Major League Baseball (MLB) for the Cincinnati Reds, San Diego Padres, Oakland Athletics, Seattle Mariners, Cleveland Indians, Chicago White Sox and Colorado Rockies.

The family defected from Cuba in 1996 and settled in Miami, where Alonso played on a Little League team funded by Jose Canseco.

[10] Alonso made his Minor League debut on August 26, 2008, for the High–A Sarasota Reds against the Clearwater Threshers.

[11] After the 2008 season, Alonso joined the Waikiki BeachBoys of the Hawaii Winter Baseball league and hit .308 with four home runs and 21 RBI in 29 games.

[11] Alonso entered the 2009 season ranked as the number one overall prospect in the Reds organization by Baseball America.

[11] He started the season with Sarasota, played 49 games, and hit .303 in 175 at–bats with seven home runs, 13 doubles, and 38 RBI.

After receiving a promotion to the Double–A Carolina Mudcats, he hit .295 in 105 at–bats, with 11 doubles, two home runs, and 14 RBI over 29 games.

[12] Alonso started 2010 in Carolina playing left field, as he was blocked at first base in Cincinnati by Joey Votto.

[13] In May, Alonso was promoted to the Triple–A Louisville Bats where he played 82 of his 101 games at first base, hitting .296 with 12 home runs.

[16] Alonso, Edinson Vólquez, Yasmani Grandal, and Brad Boxberger were traded to the San Diego Padres in exchange for Mat Latos on December 17, 2011.

Alonso played 155 games for the Padres in 2012, including 144 starts at first base, and posted a batting line of .273/.348/.393 with nine home runs.

After Ethier was hit and two right-handed hitters were due, Alonso and Gyorko switched again, and the Padres got out of the inning after A.J.

[24] Blanks and Guzmán filled in initially, but when Tommy Medica was called up, he started the rest of the season at first.

In 2015, Alonso hit .282 with five home runs and 31 RBI over 103 games; he had two separate stints on the disabled list because of a shoulder injury and strained lower back.

[28] On December 2, 2015, the Padres traded Alonso and Marc Rzepczynski to the Oakland Athletics in exchange for Drew Pomeranz, José Torres, and a player to be named later or cash considerations (later specified as Jabari Blash).

[29] On January 13, 2016, the A's and Alonso announced that they had agreed to a one-year contract worth $2.65 million to avoid arbitration.

[35] On December 15, 2018, Cleveland traded Alonso to the Chicago White Sox in exchange for minor league outfielder Alex Call.