December 21, 2015 2:15 PM EST

Auston Matthews

The 18-year-old is already dominating Switzerland’s top league. He’s a lock for the No. 1 NHL draft pick in June.

Corey Seager

Last season the L.A. Dodgers shortstop hit .337 in the 27 games he played with the club. He’ll be a Rookie of the Year favorite.

Holly Holm

What comes after knocking out champ Ronda Rousey? A planned rematch.

Joey Bosa

The NFL draft lacks a can’t-miss QB prospect, which opens the door for Ohio State’s Bosa at No. 1.

Madison Keys

The 20-year-old American went far at Wimbledon and finished the year ranked No. 18. Expect her to rise.

This appears in the December 28, 2015 issue of TIME.

Write to Jack Dickey at

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