He was drafted by the Cincinnati Reds in the 33rd round of the 2011 MLB Draft, and was called up to the major leagues for the first time on May 20, 2016.[5] On January 19, 2017, Selsky was designated for assignment by the Reds.[6]
Selsky was claimed off waivers by the Boston Red Sox on January 25, 2017.[7] He went 1–for–9 (.111) with a double in limited action across 8 games for Boston. On August 23, Selsky was designated for assignment by the Red Sox following the acquisition of Rajai Davis.[8] He cleared waivers and was sent outright to the Triple–A Pawtucket Red Sox on August 29.[9] In 79 games for Pawtucket, Selsky hit .216/.270/.360 with 11 home runs and 39 RBI. He elected free agency following the season on November 6.[10]
Selsky re-signed with the Red Sox on February 7, 2018, on a minor league contract.[11] He was released by the organization on March 31.[12]
On April 9, 2018, Selsky signed a minor-league contract with the Cincinnati Reds.[13] In 82 games for the Triple–A Louisville Bats, he hit .265/.333/.448 with 10 home runs and 35 RBI. Selsky elected free agency following the season on November 2.[14]
Selsky's father, Steve Sr., played baseball for several Chicago White Sox minor league affiliates. His mother, Lou Ann, was part of the national volleyball team in 1980 and went to the world games. His oldest sister, Stesha, was a volleyball player at the University of Michigan. His twin sister, Samantha, was a two-time All-American at the University of Dayton. His wife, Brittany, was also a soccer player at his alma mater, the University of Arizona.[15]
