Tolliver was optioned to minor league camp Wednesday, Julia Morales of ROOT Sports reports.
The results for Tolliver in six Cactus League appearances were less than stellar (seven earned runs in 4.2 innings), but at least he had a 5:1 K:BB. A waiver acquisition in early December, he will need to hold his own at Triple-A to begin the year to maintain his spot on the 40-man roster.