The Diamondbacks reassigned Curtiss to minor-league camp Sunday, Alex Weiner of ArizonaSports.com reports.
Curtiss appears set to begin the season in the bullpen at Triple-A Reno after he was touched up for three earned runs on five hits and two walks over 5.2 innings in Cactus League play. The 32-year-old righty could earn another look in the majors if he can rediscover the form he displayed last season across two stints with Arizona last year, when he collected four holds and accrued a 3.93 ERA, 0.93 WHIP and 24:5 K:BB in 36.2 innings.