Slegers announced his retirement from baseball Thursday.
The Rays reassigned Slegers to minor-league camp Monday.
Slegers signed a two-year minor-league contract with the Rays on Tuesday which includes an invitation to next year's spring training, Marc Topkin of the Tampa Bay Times reports.
Slegers elected to become a free agent after clearing waivers and being outrighted to Triple-A Salt Lake on Saturday.
Slegers cleared waivers and was outrighted to Triple-A Salt Lake on Saturday.
Slegers was optioned to Triple-A Salt Lake on Friday.
Slegers allowed four runs on seven hits and one walk while striking out two batters versus the Tigers on Thursday.
Slegers was recalled from Triple-A Salt Lake on Wednesday.
Slegers was optioned by the Angels to Triple-A Salt Lake on Thursday.
Slegers was recalled from Triple-A Salt Lake on Sunday.