Tomas, who defected from Cuba last year, signed a six-year, $68.5 million contract with the Diamondbacks in December. He was optioned to Triple A Reno on April 4 to begin the season.
To make room for Tomas on the roster, Arizona optioned pitcher A.J. Schugel down to Triple A.
In spring training, Tomas hit .257 with two home runs and 12 RBI in 24 games. The 24-year-old also played third base in spring training, but there is some doubt as to whether he can succeed there at the major league level. "I could not find a scout or executive — and asked at least 10 — who think Yasmany Tomas can play third base," Joel Sherman of the New York Post reported last month. "[T]he opinion is pretty universal that Tomas just might not have the hands for third base and he might be too bulky for the position."
Tomas played five seasons for the Havana Industriales in Cuba's Serie Nacional, hitting 30 home runs with 104 RBI in 205 regular-season games.
- Molly Geary