Two of the top pitching prospects in the Red Sox farm system are returning to Double-A Portland for the start of the 2022 season.

As part of a flurry of roster moves made on Monday, the Sox announced that left-hander Jay Groome and right-hander Brayan Bello had been transferred from Triple-A Worcester to Double-A Portland.

Both Bello and Groome are on Boston’s 40-man roster and were invited to big-league camp at the onset of spring training. When they were reassigned to minor-league camp last month, the Sox announced the move by saying they had been optioned to Worcester. So the fact that they were transferred from Worcester to Portland on Monday should not be viewed as a demotion since they were expected to begin the season in Double-A to begin with.

Bello, 22, and Groome, 23, are currently regarded by Baseball America as the No. 5 and No. 10 prospects in Boston’s farm system, respectively. The former ranks first among pitchers in the organization while the latter ranks fourth. They both began last season with High-A Greenville and ended the year in Portland.

Bello, a former international free agent signed out the Dominican Republic in 2017, posted a 2.27 ERA and 2.82 FIP to go along with 45 strikeouts and seven walks over six starts (31 2/3 innings pitched) with Greenville before earning a promotion to Portland on June 8.

With the Sea Dogs, the righty produced a 4.66 ERA — but much more respectable 3.12 FIP — with 87 strikeouts to 24 walks over 15 starts spanning 63 2/3 innings of work. He also represented the Red Sox in the All-Star Futures Game and was named the organization’s Minor League Starting Pitcher of the Year.

Groome, a former first-round draft pick out of Barnegat High School (N.J.) in 2016, posted a 5.29 ERA and 4.35 FIP with 108 strikeouts to 32 walks across 18 starts (81 2/3 innings) with the Drive before being promoted to Portland in early September.

Although it came in a smaller sample size, Groome’s stint with the Sea Dogs last year went more swimmingly than Bello’s. In three starts to close out his season, the lefty pitched to the tune of a 2.30 ERA and 1.15 FIP to go along with 26 strikeouts and just four walks over 15 2/3 innings of work.

Bello, who turns 23 in May, has three pitches in his arsenal: a fastball, changeup, and slider. Groome, who turns 24 in August, operates with a four-pitch mix that consists of a fastball, curveball, changeup, and slider.

The two hurlers made just one appearance each in Grapefruit League play this spring, but still showed why they are as highly-touted as they are. It would not be unreasonable if one of the two, or maybe even both, made it up to Worcester by the end of the year.

In the meantime, though, Bello and Groome figure to lead a talented Portland pitching staff that will feature the likes of Chris Murphy, Brandon Walter, Victor Santos, Franklin German, Chase Shugart, and Jacob Wallace, among others.

The Sea Dogs open their season against the New Hampshire Fisher Cats (Blue Jays affiliate) at Hadlock Field this coming Friday, April 8. One would have to figure Bello or Groome will get the starting nod on Opening Day.

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