Rondon opted to retire from professional baseball Tuesday, Chris Cotillo of The Springfield Republican reports.

Rondon signed a minor-league contract with the Red Sox on Tuesday, Chris Cotillo of The Springfield Republican reports.

Rondon was released by the Phillies on Thursday, Matt Breen of The Philadelphia Inquirer reports.

Rondon signed a minor-league contract which includes an invitation to big-league camp with the Phillies on Tuesday, Scott Lauber of The Philadelphia Inquirer reports.

Rondon's contract option was declined by the Diamondbacks on Wednesday, Steve Gilbert of MLB.com reports.

Rondon allowed one hit over one scoreless inning in Friday's 6-3 win over the Astros.

Rondon allowed three runs on two hits while striking out one over one inning in Sunday's 6-1 loss to San Francisco.

Rondon allowed one run on one hit while striking out one and recorded his first hold in Saturday's 3-2 win over the Padres.

Rondon allowed two runs on two hits and three walks while striking out one over two-thirds of an inning in Wednesday's 7-4 loss to the Rangers.

Rondon is expected to be the setup reliever for closer Archie Bradley, Nick Piecoro of the Arizona Republic reports.