Flip on any highlight show and you're almost sure to see them, with those peach-fuzz faces and boyish features beneath their big league caps.
Mike Trout makes a diving catch on the warning track.
Manny Machado whacks another double into the corner at Camden Yards.
Bryce Harper belts a tape-measure home run or barrels into a catcher ... or an outfield fence ... or whatever stands in his way.
The next generation of baseball stars has arrived - straight from the senior prom, it seems - and these guys are changing the complexion of the grand ol' game.
Derek Jeter is 39 and injured, left off the All-Star team for the first time in eight years.
Matt Harvey is 24 and merciless, with a polished array of breaking pitches to complement 98-mph heat.
''These guys are coming up now with incredible talent, these young players,'' National League manager Bruce Bochy said Monday at Citi Field, where the New York Mets are hosting the All-Star game for the first time since Shea Stadium opened i...