Arroyo (wrist) has gone 0-for-6 with two walks and two runs in two games since being reinstated from Triple-A Nashville's 7-day injured list Wednesday.
Brewers manager Pat Murphy said Sunday he doesn't expect Arroyo, who is also dealing with a wrist injury, to exercise the opt-out in his minor-league contract, Curt Hogg of the Milwaukee Journal Sentinelreports.
The Brewers reassigned Arroyo to minor-league camp Friday, Sophia Minnaert of Bally Sports Wisconsin reports.
Brewers manager Pat Murphy said recently that Arroyo will receive the bulk of his reps this spring at third base, Todd Rosiak of the Milwaukee Journal Sentinel reports.
Arroyo signed a minor-league contract with the Brewers on Thursday that includes an invitation to spring training, Buster Olney of ESPN reports.
Arroyo elected free agency Monday.
Arroyo cleared waivers and was outrighted to Triple-A Worcester on Sunday, Christopher Smith of The Springfield Republican reports.
Arroyo was designated for assignment by the Red Sox on Friday, Pete Abraham of The Boston Globe reports.
Arroyo is not in the lineup Friday at San Francisco.
Arroyo is out of the lineup for Wednesday's game against Atlanta, Christopher Smith of The Springfield Republican reports.