In addition to being adversaries in the Giancarlo Stanton sweepstakes, the Boston Red Sox and San Francisco Giants may look to become trade partners.

The Giants, looking to bolster their outfield, are reportedly interested in the services of Red Sox center fielder Jackie Bradley Jr., a source tells MLB Network's Jon Morosi.

Bradley Jr. is not the only outfield option the team is looking at, but an upgrade is paramount.

No team accumulated fewer Wins Above Replacement from outfield positions in 2017 than the Giants (0.8). Outfielders combined to hit .255/.309/.375 with 43 home runs.

Entering the offseason, the Giants' projected starting three in the outfield rests with Denard Span, Hunter Pence, and Jarrett Parker.

The 27-year-old Bradley Jr. suffered through an up-and-down season in which he hit .245/.323/.402. It was a letdown after he seemed to emerge as a fantastic all-around player in 2016 when he tallied a 29-game hitting streak.

Bradley Jr. was drafted 40th overall by the Red Sox in the 2011 amateur draft, and has spent his entire MLB career with the club. He is arbitration eligible for the first time.