With Las Vegas , he recorded 2.12 groundouts for every fly out .
The 23 - year - old Gsellman , a 13th - round pick in 2011 out of high school in Los Angeles , specializes in keeping the ball on the ground .
With Las Vegas , Gsellman recorded 2.12 groundouts for every fly out .
The 23 - year - old Gsellman , a 13th - round pick in 2011 out of high school in Los Angeles , specializes in keeping the ball on the ground .