Born in Oregon, raised in Germany, forged in Europe's pro leagues — a passing big who took the long way to a ring.
The son of an Oregon-educated pro, Hartenstein grew up in Germany, skipped U.S. college, and won a Lithuanian title with Žalgiris before Houston drafted him 43rd in 2017.
He bounced through Houston, Denver, Cleveland, and the Clippers — winning a G League Finals MVP — before a breakout in New York made him one of the league's best backup-turned-starting bigs.
OKC signed him for three years and $87M in 2024, and despite an early hand fracture he anchored the champions with screening, passing, and rebounding.
In the clinching Game 7 he added seven points and nine rebounds — the connective big of a title team.