[1] He made his Major League Baseball (MLB) debut with the Angels in 2010, and also played for the Atlanta Braves.

Kohn made his major league debut on July 26, 2010, against the Boston Red Sox at Angel Stadium of Anaheim.

[3][4] Fully healthy in 2013, Kohn was a bullpen mainstay for the Angels, appearing in a career high 63 games.

[14] He spent the year split between the rookie–level Gulf Coast League Twins, High–A Fort Myers Miracle, and Triple–A Rochester Red Wings.

[16] He made 27 appearances split between the rookie–level Arizona League Diamondbacks, Double–A Jackson Generals, and Triple–A Reno Aces, accumulating a 4.03 ERA with 50 strikeouts and 9 saves.