Rusney Castillo isn’t on the Boston Red Sox 40-man roster and because of it, his salary isn’t digging into the luxury tax. That’s the only thing keeping him from the majors at this point though.

While the Red Sox are pretty set outfield-wise, there’s no such thing as too much depth. Injuries happen, and when they do the question becomes who takes their places. If anyone has earned a spot, it’s Castillo.

Playing for the Triple-A Pawtucket Red Sox, Castillo has a .295/.328/.498 slash line. The right-handed hitter has 17 doubles and nine home runs on the year. He’s driven in 27 runs while scoring 36 more and stealing nine bases as well.

Hot is an understatement. The 29-year-old is currently on a 12-game hitting streak. In that streak he’s 19-for-48 (.396) with five doubles and two home runs. He has eight RBI and eight runs scored in that time. For good measure, he’s thrown in two steals and has only struck out three times in that stretch.

On the defensive end, Castillo still has a great glove and an absolute rocket for an arm. He’s also shown versatility, covering all three outfield spots this season.

Unfortunately, a call up is probably not happening. Castillo’s contract would push the Red Sox into the luxury tax.

Nevertheless, it’s impossible to deny he’s having a career-reviving season in Triple-A.

Thanks to Bryce Brentz finding his power (.247 with 12 home runs) this year, the Red Sox have a solid backup plan. Should injuries arise, he’s a more-than-qualified candidate with a strong MLB resume.

With that being said, if Castillo continues to hit, the Red Sox will have to weigh the pros and cons. Should injuries arise and Boston ends up needing an extra outfielder, you’d hope they’d go with the guy that gives them the best chance to win, not the one that saves them the most money.

No matter where he ends up this season, it’s clear Rusney Castillo is far from finished.

Hunter Noll is a Staff Writer for Outside Pitch MLB. Follow him on Twitter