50 Brett Nicholas C

Nicholas announced on his personal Twitter page Monday that he's elected to retire.

The 30-year-old signed a minor-league deal with the White Sox in mid-April but elected to retire rather than fight his way back to the big leagues. He got into 37 games with the Rangers in 2016 and 2017, hitting .252/.300/.456 with four homers.

Nicholas agreed to a minor-league deal with the White Sox earlier this month, Kegan Lowe of Baseball America reports.

Nicholas attended spring training with the Rockies but was released from the organization at the conclusion of camp. With top catching prospects Zack Collins and Seby Zavala both on hand at Triple-A Charlotte, the White Sox may elect to send Nicholas to Double-A Birmingham.

Nicholas signed a minor-league contract with the Rockies on Sunday, Thomas Harding of MLB.com reports.

The 30-year-old backstop spent all of last season in the Padres organization. He slashed .291/.353/.485 with 16 homers and 83 RBI at Triple-A El Paso but was unable to crack the big-league roster at any point. He has a .756 OPS in 110 MLB plate appearances in his career, though as things stand now, Nicholas figures to largely provide catching depth for the Rockies behind Chris Iannetta, Tony Wolters and Tom Murphy.