The Boston Red Sox are not expected to invest heavily into the roster ahead of spring training and could look to fill their biggest needs by taking shots on affordable players that hopefully carry some upside.

Red Sox chief baseball officer Craig Breslow currently is seeking a starting pitcher and an impact right-handed bat with positional versatility to bolster the roster.

The best-case scenario would be for Breslow to sign southpaw Jordan Montgomery and outfielder/designated hitter Jorge Soler — a pair of moves that would immediately put the Red Sox in playoff contention.

However, Red Sox ownership seemingly cares more about staying far below the luxury tax, which could set Breslow’s sights much lower.

If that’s the case, Breslow could look toward the player with the highest pedigree in the mid-tier market, right-hander Hyun-jin Ryu.

The 36-year-old is expected to have a large market according to The New York Post’s Jon Heyman, who gave some insight on Wednesday while doing his weekly Bleacher Report livestream.

While he did not directly tie these clubs to Ryu, he mentioned the San Diego Padres, Baltimore Orioles, Minnesota Twins, San Francisco Giants, Los Angeles Angels and Red Sox as teams he’d expect to be in the mix.

Ryu has a career 78-48 record with a 3.27 ERA, 934-to-236 strikeout-to-walk ratio, .250 batting average against and a 1.18 WHIP in 186 appearances (185 starts).

The Korean star is one of the more underrated players of the last decade and appears to have plenty in the tank. Ryu missed most of last season recovering from Tommy John surgery but returned in August to post a 3.46 ERA across 11 starts.

If Montgomery signs elsewhere, Ryu could be the perfect player for the Red Sox to bridge the gap within the rotation until they get to the point where they want to spend heavily again — though nobody can seem to figure out what they are waiting for.