The Diamondbacks have designated right-hander Zeke Spruill for assignment, according to Steve Gilbert of MLB.com (via Twitter). The move will make room on the 40-man roster for Yasmany Tomas.
Spruill, 25, has made three starts and nine relief appearances for Arizona across the last two seasons. However, the former second round pick of the Braves (2008) spent the bulk of 2013 and 2014 in Triple-A.