The Mets signaled they were pivoting to 2024 and beyond with their blockbuster sales at the Trade Deadline. That theme will continue in September, this time with a big addition.

New York is expected to call up No. 91 overall prospect Ronny Mauricio by Friday for his Major League debut, sources told MLB.com’s Anthony DiComo this week. The move corresponds with September roster expansion to 28 players, giving clubs a little more flexibility and Minor League talents an opportunity to see The Show.

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The switch-hitter heads to The Show after hitting .292/.346/.506 with 23 homers and 24 steals in 116 games at Triple-A Syracuse. The 2023 season has seen a repeat 20-20 performance from Mauricio, and as of Thursday, he is one of 14 Minor Leaguers to hit the 20 mark in both the HR and SB categories. He accomplished this by being one of only seven players aged 22 or younger to meet the qualifying standard at the Minors’ top level, and his 109 wRC+ was second-best among that group – one spot above fellow Top 100 prospect Masyn Winn (107) who was similarly called up to St. Louis in the second half.

The raw power, in particular, has never been in doubt for the Dominican Republic native.

Mauricio has strung together three straight 20-homer seasons following the missed pandemic year, and only Luke Ritter (27) has gone deep more among Mets Minor Leaguers in 2023. Mauricio’s max exit velocity for Syracuse was 116.0 mph. No Major League Mets have reached that mark this season, with Pete Alonso leading the way at 115.7 mph. In fact, Mauricio has accounted for 10 of Syracuse’s top 12 exit velocities in 2023, ranging from 113.3 to 116.0. His 43.2 percent hard-hit rate (i.e. percentage of batted balls hit at 95-plus mph) would rank sixth among Mets Major League qualifiers, between Francisco Alvarez (44.2) and Alonso (42.1).

The pop has played a little better from the left side (.516 slugging percentage) than the right (.473), but Mauricio has shown an ability to drive the ball regardless of pitcher handedness.

The youngster’s power would play even better in games if he had a better approach at the plate, something that’s been a constant work in progress as he’s ascended toward Queens.

Mauricio has shown an unfortunate willingness to expand the zone at times, leading to some concern that he’ll possess a below-average hit tool at the top level. Even while his strikeout rate has dropped to 18.2 percent in 2023 (partly because of the ABS system in Triple-A), he has swung at pitches outside the zone 36.2 percent of the time at Triple-A, according to data collected by BrooksBaseball.net, and has particularly chased high pitches. The Major League average O-Swing% in 2023 is 28.7 percent. His walk rate was also 6.6 percent, seventh-lowest among Triple-A qualifiers.

There had been positive trends of late in the discipline department with Mauricio walking 11 times in 115 plate appearances (9.6 percent) during August. But even so, Major League pitching should provide a tougher test of Mauricio’s ability to work a free pass, and he’ll have to keep the aggression limited to pitches he can drive if the bat is going to play quickly at the top level.

Defensively, the 6-foot-3 Mauricio was brought up as a shortstop with many evaluators believing he’d have to move off the position in time. That belief was solidified when the Mets acquired Francisco Lindor in 2021, but New York didn’t truly give Mauricio exposure to other positions until this summer. He saw sporadic International League time at third base and left field, but the bulk of his looks came at second, including each of his final 13 starts for Syracuse.

Should he continue to play the keystone -- as would be expected as New York aims to keep some continuity with such a budding young star -- Jeff McNeil would likely have to move a corner outfield spot. It’s worth noting Mets manager Buck Showalter has a history of easing in top prospects with playing time, but as the club assesses its options ahead of the offseason, Mauricio should get plenty of playing time now that he’s up, especially to expose him to top-level arms.

There might be times when Mauricio wows in Queens with loud contact and long dingers. There might be times when he maddeningly expands the zone to his detriment. How many times he dips into each bucket could give Mets evaluators a better idea of his role in the future in Flushing.