Schultz agreed Wednesday with the Rays on a minor-league contract that includes an invitation to MLB spring training, Marc Topkin of the Tampa Bay Times reports.
Schultz (oblique) was released by the Mariners on Tuesday.
Schultz (oblique) was assigned to Seattle's minor-league spring training Monday, Shannon Drayer of 710 ESPN Seattle reports.
Schultz was diagnosed with a strained left oblique Monday, Ryan Divish of The Seattle Times reports.
Schultz signed with the Mariners on Monday as a non-roster invitee, source reports.
Schultz signed a minor-league contract with the Athletics on Monday, Susan Slusser of the San Francisco Chronicle reports.
Schultz cleared waivers Sunday and was outrighted to Triple-A Oklahoma City, Bill Plunkett of The Orange County Register reports.
Schultz was designated for assignment Thursday.
Schultz was optioned to Triple-A Oklahoma City on Monday.
Schultz was recalled from Triple-A Oklahoma City prior to Saturday's game against the Nationals.