Red Sox Free Agent Lucas Giolito Rumored to Join NL West Squad

Sep 6, 2025; Phoenix, Arizona, USA; Boston Red Sox pitcher Lucas Giolito (54) pitches during the fifth inning at Chase Field. Mandatory Credit: Arianna Grainey-Imagn Images Arianna Grainey-Imagn Images

Red Sox Free Agent Lucas Giolito Rumored to Join NL West Squad

Originally posted on Boston Red Sox on SI
By Jackson Roberts | Last updated Apr 22, 2026 10:00 AM ET

Add us as a preferred source on Google

It's frankly stunning that Lucas Giolito remains unsigned in free agency, even if it made sense for the Boston Red Sox to let him walk.

Giolito's two-year, $38.5 million contract with the Red Sox expired when the club turned down their half of a $19 million mutual option that vested when the righty hit 140 innings last year. But Boston added Sonny Gray, Johan Oviedo, and Ranger Suárez in trades and free agency, so it was clear for months that Giolito wouldn't be back.

With the season underway, Giolito has been the only big-name free agent left on the market for well over a month. But it appears, based on one rumor circulated by a Red Sox insider on Tuesday, that the 31-year-old may be close to opening his next chapter.

If you like our content, choose Sports Illustrated as a preferred source on Google.

Giolito and Padres: 'Inevitable' pairing?

MassLive's Chris Cotillo reported on X that he had heard from multiple sources that Giolito was likely to join the San Diego Padres, who lost top starter Nick Pivetta to an ominous elbow injury earlier this month and are still unsure when Joe Musgrove will return after missing all of last season.

"(For what it's worth), have heard from some people in the industry who think Lucas Giolito and the Padres is an inevitable marriage that could take shape soon," wrote Cotillo.

While it would make a lot of sense for San Diego to add more starting pitching depth, it wouldn't be an immediate impact. Giolito would need at least a couple of minor-league starts to build up after not having a traditional spring training.

Why Giolito is still available

Giolito put up a 10-4 record and a 3.41 ERA in his 26 starts last season for the Red Sox, but his underlying metrics like FIP and xERA suggested that he'd been one of the luckiest pitchers in the sport based on the quality of the contact he gave up.

Giolito also missed the Red Sox's playoff run with an elbow injury sustained just as the regular season was ending. He reported no structural damage and had a normal offseason, but after missing all of 2024 due to internal brace surgery, teams had to be a bit nervous about his bill of health.

This article first appeared on Boston Red Sox on SI and was syndicated with permission.

More must-reads: