Rodriguez cleared waivers Wednesday and was sent outright to Triple-A Worcester, Chris Cotillo of The Springfield Republican reports.
The Red Sox designated Rodriguez for assignment Sunday.
Rodriguez allowed a run on one hit and struck out two over one inning to pick up his first hold of the season in Thursday's 6-4 win over the Mariners on Opening Day.
The Red Sox selected Rodriguez's contract from Triple-A Worcester on Thursday.
Rodriguez was informed Sunday that he made the Red Sox's Opening Day roster, Alex Speier of The Boston Globe reports.
Rodriguez signed a minor-league contract with the Red Sox on Thursday that includes an invitation to spring training, Chris Cotillo of The Springfield Republican reports.
The Red Sox declined Rodriguez's (hip) $4.25 million option for 2024 on Saturday, Pete Abraham of The Boston Globe reports.
Rodriguez has been shut down from throwing due to recurring pain in his right hip, Ian Browne of MLB.com reports.
Rodriguez was placed on the 15-day injured list Monday with right hip inflammation.
Rodriguez will be placed on the 15-day injured list with hip tightness Monday, Julian McWilliams of The Boston Globe reports.