BABY BOOMERS

Of the 10 best players in baseball (measured by Wins Above Replacement), half are 25 or younger. When he's called up to the Show, Vladimir Guerrero Jr. will join a crop of phenoms, some of whom aren't old enough to drink the champagne in a winning clubhouse. Here are the best of the bunch, and whom they'll most resemble by 2023.

RONALD ACUÑA OF, Braves Age: 20

The best prospect in the minors before being called up in late April, the five-tool talent has lived up to the hype and played excellent leftfield too.

In five years he'll be ... Andruw Jones

OZZIE ALBIES 2B, Braves Age: 21

When he entered the majors, he was regarded as a speedy prospect with a slick glove who'd hit for average. He's still all of that—and hitting for big-time power too.

In five years he'll be ... José Altuve

RAFAEL DEVERS 3B, Red Sox Age: 21

The old man of this crew (by seven weeks) he's on pace for 30 homers, and is showing that his explosive first month in the bigs (last July) was no fluke.

In five years he'll be ... Justin Turner

JUAN SOTO OF, Nationals Age: 19

The youngest player in the majors, he hit a home run in his first start, becoming the youngest to go deep since Jurickson Profar in 2012.

In five years he'll be ... Matt Holliday

GLEYBER TORRES 2B, Yankees Age: 21

In the last 50 years, only 14 hitters 21 or under have posted 5.0 WAR seasons. Acuña, Albies and Torres (eight homers in his first month) are all on pace to do so.

In five years he'll be ... Dustin Pedroia