Harrison has ended his baseball career and will play college football in the fall, as he joined Arkansas' program as a walk-on in May,Kyle Bonagura of ESPN.com reports.
Harrison agreed Monday with the Brewers on a minor-league contract and received an invitation to MLB spring training, Todd Rosiak of the Milwaukee Journal Sentinel reports.
Harrison cleared waivers and was assigned to Triple-A Salt Lake on Monday.
Harrison was designated for assignment by the Angels on Wednesday.
Harrison went 2-for-4 with a home run, three RBI and a strikeout during Sunday's 9-5 loss to the Orioles.
Harrison had his contract selected by the Angels on Friday.
Harrison signed a minor-league contract with the Angels on Monday.
Harrison was released by the Marlins on Saturday, Christina De Nicola of MLB.com reports.
Harrison was designated for assignment by the Marlins on Friday, Jordan McPherson of the Miami Herald reports.
Harrison was optioned to Triple-A Jacksonville on Wednesday, Christina De Nicola of MLB.com reports.