Sardiñas was ranked by MLB.com as the 84th best prospect in baseball before the 2013 season. He was considered the Rangers second best prospect by MLB.com during the 2013-14 offseason.[2]
The Rangers promoted Sardiñas to the major leagues on April 19, 2014.[3] He made his major league debut the next day.[4] He collected his first Major League hit off of Andre Rienzo.
On November 20, 2015, the Brewers traded Sardiñas to the Seattle Mariners for Ramón Flores.[8] Sardiñas hit his first major league home run on April 5, 2016, off of reliever Andrew Faulkner of the Rangers.[9] He batted .181/.203/.264 in 72 at bats for the Mariners during the 2016 season, while also playing for the Tacoma Rainiers of the PCL.[10]
San Diego Padres
On August 15, 2016, the Mariners traded Sardiñas to the San Diego Padres in return for a player to be named later or cash considerations.[11] He batted .287 for the Padres for the remainder of the 2016 season, and competed to become the Padres' starting shortstop in 2017.[12] He did not win the starting shortstop role,[13] but made the team as a reserve. He batted .163/.226/.163 in 2017 before the Padres designated him for assignment on May 21.[14]
Baltimore Orioles
On May 24, 2017, the Baltimore Orioles claimed Sardiñas off of waivers.[15] Two days later, he was removed from the 40–man roster and sent outright to the Norfolk Tides of the Triple–A International League.[16] Sardiñas finished the year with Norfolk, playing in 83 games and hitting .319 with five home runs and 30 RBI.
After beginning 2018 with Norfolk, Sardiñas was selected to the major league roster on April 17, 2018.[17] He went 2–for–18 (.111) in eight games before being placed on the injured list with a back injury. Upon being activated on July 6, Sardiñas was again removed from the roster and outrighted to Triple–A Norfolk.[18] He elected free agency on October 2.[19]
Washington Nationals
On January 22, 2019, Sardiñas signed a minor league contract with the Washington Nationals.[20] He split the year between the Double–A Harrisburg Senators and Triple–A Fresno Grizzlies, playing in 82 games and hitting .234 with one home run and 21 RBI. Sardiñas became a free agent following the 2019 season,[21] but later re-signed with the team on a minor league deal in the offseason. After the 2019 season, he played for Caribes de Anzoátegui of the Liga Venezolana de Béisbol Profesional (LVMP).
Sardiñas did not play in a game for the organization in 2020 due to the cancellation of the minor league season because of the COVID-19 pandemic.[22] On May 29, 2020, Sardiñas was released by Nationals.[23] After the 2020 season, he again played for the Caribes of the LVMP.
Mariachis de Guadalajara
On February 15, 2021, Sardiñas signed with the Mariachis de Guadalajara of the Mexican League.[24] In 51 games for the team, he batted .332/.376/.550 with 9 home runs, 40 RBI, and 13 stolen bases.[25]
Algodoneros de Unión Laguna
On August 1, 2022, Sardiñas was traded to the Algodoneros de Unión Laguna.[26] He played in only four games for the club to finish the year. In 2023, Sardiñas played in 45 games for Unión Laguna, batting .318/.389/.459 with four home runs and 39 RBI.[27]
Leones de Yucatán
On July 11, 2023, Sardiñas was traded to the Leones de Yucatán.[28] In 23 games for Yucatán, he batted .290/.389/.398 with 2 home runs and 10 RBI.
Charros de Jalisco
On February 12, 2024, Sardiñas was traded to the Charros de Jalisco.[29] In 62 games for Jalisco, Sardiñas hit .282/.333/.496 with 11 home runs, 41 RBI, and 8 stolen bases.
Guerreros de Oaxaca
On July 2, 2024, Sardiñas was traded to the Guerreros de Oaxaca of the Mexican League.[30] In 12 games for Oaxaca, he batted .333/.440/.429 with one home run and 11 RBI. Sardiñas was released by the Guerreros on July 17.[31]
Tecolotes de los Dos Laredos
On July 22, 2024, Sardiñas signed with the Tecolotes de los Dos Laredos of the Mexican League.[32] In nine games for Dos Laredos, he slashed .229/.429/.657 with two home runs and four RBI.
