The Red Sox are promoting their top three prospects — shortstop Marcelo Mayer, outfielder Roman Anthony, and catcher Kyle Teel — from Double-A Portland to Triple-A Worcester, as was first reported by The Boston Globe’s Alex Speier.

Mayer, Anthony, and Teel are currently regarded by Baseball America as the Nos. 10, 18, and 31 prospects in the sport, respectively. Dubbed “The Big Three” within Boston’s farm system, the talented trio represented the organization at last month’s All-Star Futures Game in Arlington, Texas. They are expected to join the WooSox and make their Triple-A debuts on Tuesday, when the club opens a six-game series against the Lehigh Valley IronPigs at Polar Park.

Mayer, the longest-tenured of the three, was originally selected by the Red Sox with the fourth overall pick in the 2021 draft out of Eastlake High School (Chula Vista, Calif.). The left-handed hitting 21-year-old batted .307/.370/.480 with 28 doubles, eight home runs, 38 RBIs, 60 runs scored, 13 stolen bases, 30 walks, and 66 strikeouts in 77 games (335 plate appearances) for Portland this season. As noted by Speier, he was recently sidelined by minor hip soreness but was activated from the injured list over the weekend and should be ready to play.

Defensively, Mayer saw the vast majority of his playing time with Portland this season come at shortstop. The 6-foot-3, 188-pounder logged 543 innings at short for the Sea Dogs, committing 10 errors in 212 chances. He also started one game at third base and nine at DH.

Anthony, meanwhile, was taken by the Red Sox with the 79th overall selection in the 2022 draft out of Stoneman Douglas High School (Parkland, Fla). The left-handed hitting 20-year-old slashed .269/.367/.489 with 20 doubles, three triples, 15 home runs, 45 RBIs, 60 runs scored, 16 stolen bases, 48 walks, and 96 strikeouts in 84 games (376 plate appearances) for Portland this season. He is currently riding an 11-game hitting streak.

On the other side of the ball, Anthony had been serving as the Sea Dogs’ primary center fielder leading up to Sunday’s promotion. The 6-foot-2, 200-pounder logged 489 1/3 innings in center for Portland, committing three errors in 132 chances. He also made two starts in left field (where he recorded two outfield assists), one start in right field, and 15 starts at DH.

Unlike Mayer and Anthony, Teel is in just his first full professional season after being selected by the Red Sox with the 14th overall pick in last summer’s draft out of the University of Virginia. The left-handed hitting 22-year-old batted .298/.390/.462 with 20 doubles, 11 home runs, 60 RBIs, 65 runs scored, nine stolen bases, 48 walks, and 87 strikeouts in 84 games (382 plate appearances) for Portland this season.

From behind the plate, Teel started 57 games at catcher for the Sea Dogs and threw out 18 of 91 would-be base stealers. The 6-foot, 190-pound backstop has shown “major improvement in his receiving, game-calling, and throwing since the beginning of July,” according to Speier.

After spending the better part of the last four months at Double-A, Mayer, Anthony, and Teel will make the highly-anticipated jump to Triple-A this week. Put another way, they are all just one call away from reaching the major leagues.