Kourtney Kellar Hartenstein, wife of NBA champ Isaiah Hartenstein, returns as a ring girl for the Taylor vs. Serrano fight.

Here is more on NBA player Isaiah Hartenstein's wife Kourtney Kellar, who will be a ring girl for the Katie Taylor vs. Amanda Serrano fight.

Thunder center Isaiah Hartenstein reveals a funny story about how he was recruited by the front office over the summer.

This article was originally published on www.si.com/nba/thunder as Isaiah Hartenstein Proved to be the Perfect Piece for OKC Thunder.

Shifting to contender status, the Oklahoma City Thunder knocked it out of the park with their two big offseason additions ...

Oklahoma City Thunder's Isaiah Hartenstein presented a $10,000 check to Positive Tomorrows, a school for families ...

Isaiah Hartenstein revealed that Thunder head coach Mark Daigneault has a unique way of motivating his players.

Isaiah Hartenstein on the exact moment the Thunder knew they have a real shot at the championship: "We're beating teams by 20 every night" originally appeared on Basketball Network. Isaiah Hartenstein ...

The Thunder granted nearly $800 million in contract extensions, but is not in financial trouble. Thanks to Sam Presti’s ...

Isaiah Hartenstein visited Positive Tomorrows, a nonprofit benefiting families experiencing homelessness, on Friday to ...

After a quick interaction with Isaiah Hartenstein during Tuesday's Champions parade in Oklahoma City, a young Thunder fan is receiving a gift from the star player.

Who do you draft for a team that has everything? Thunder GM Sam Presti answered that question by selecting Georgetown center ...