Isaiah Hartenstein has only just won the NBA championship with the Oklahoma City Thunder and the next exciting event is already on the horizon – in boxing.
Fatherhood, championship honors and now an imminent ring comeback: events are currently coming thick and fast for professional basketball player Isaiah Hartenstein. The German NBA star, who has just become champion with the Oklahoma City Thunder, is now looking forward to the appearance of his wife Kourtney Kellar. After the blonde stood by her husband in the exciting NBA finals against the Indiana Pacers, she is now getting active again herself – in the boxing ring. This was reported by “Sport Bild”, referring to an interview with Kourtney on Instagram.
In action on July 11 at Taylor vs. Serrano III
The 34-year-old works as a model and number girl and has recently climbed into the ring at boxing events organized by Jake Paul’s “Most Valuable Promotions”. Now Kourtney wants to show the rounds at Madison Square Garden in New York on July 11, when “Women’s Night” takes place there. The headliner of the unique boxing night will be the “Rubber Match” between Katie Taylor and Amanda Serrano for the undisputed world championship in the semi-welterweight division.
Kourtney Kellar married the German NBA professional Isaiah Hartenstein in 2023, and their son Elijah was born in May 2024. The former “Miss Texas” is said to have been approached for Mike Tyson’s comeback fight against Jake Paul in November 2024. However, she declined at the time due to her pregnancy. After a successful baby break and the numerous celebrations surrounding Isaiah’s NBA title, nothing now stands in the way of the attractive number girl returning to the ring.
Text: Frank Schwantes
Now in BOXSPORT 06/25:
Shields, Taylor, Serrano & Co. – who are the best “Pound for Pound“? And where does the German undisputed champion Tina Rupprecht stand in the ultimate ranking? Plus: 25-year-old Devrim Gökduman has fought his way to the top of the national lightweight rankings. Plus: Junto Nakatani was long overshadowed by P4P superstar Inoue – Japan’s quiet boxing sensation now has a place in the limelight himself. And: BOXSPORT on the steep rise of the Fundora siblings. Plus lots of stories, analysis, rankings, fight reports and much more.