He enrolled at Ball State University to play college football, but only saw two snaps at quarterback in his redshirt freshman season.
He followed that up with a 6-6 record and a 4.30 ERA in 22 starts for Clearwater, while also having shorts stints with the Reading Fightin Phils and the Lehigh Valley IronPigs.
In 2016, Perci compiled a combined 7-1 record and 1.83 ERA in a total of 41 appearances with the Akron RubberDucks and the Columbus Clippers before making his major league debut in August.
On July 31, 2017, Garner was designated for assignment by the Indians, in order to make room on their 40-man roster for Joe Smith.
On December 3, 2020, Garner became the executive director of the Rainbow Connection, an organization that provides assistance to those needing help with medical bills or expenses.