Isaiah Hartenstein is day-to-day with an ankle issue, sitting out for Germany at the FIBA 2027 World Cup Qualifiers. The Thunder list his expected return as Oct. 1, five days before their season opener against the Pelicans.
What happened
The Thunder listed Isaiah Hartenstein as day-to-day with an ankle issue in the injury report published Sunday, Sept. 6, at 4:32 a.m. ET. The report also flags his leg, with no previous designation on file for comparison. Hartenstein will not play for Germany during this summer's FIBA 2027 World Cup Qualifiers because of the ankle, according to Eurohoops.net. The report lists his expected return date as Oct. 1.
What it means for the Thunder
Oklahoma City opens its season at home against the Pelicans on Tuesday, Oct. 6, and Hartenstein's expected return date of Oct. 1 falls before that game. Last season he averaged 9.2 points, 9.4 rebounds and 3.5 assists in 24.2 minutes across 47 games. The Thunder have not played a regular-season game yet in 2026-27, so there is no record with or without him to compare. If he needs more time, Chet Holmgren has taken on the frontcourt minutes, averaging 29.0 minutes and 17.1 points, while Shai Gilgeous-Alexander leads the team at 33.2 minutes and 31.1 points a game when Hartenstein was out.
What to watch
Hartenstein's next official update will come with the Thunder's following injury report. His expected return date is Oct. 1, five days before Oklahoma City opens the season against the Pelicans on Oct. 6. He is one of five Thunder players carrying a day-to-day designation on the current report, along with Ajay Mitchell, Thomas Sorber, Otega Oweh and Jalen Williams, so his availability for the opener will be worth tracking alongside theirs.
Is Isaiah Hartenstein playing vs Pelicans?
He is listed as day-to-day, not out, and his expected return date of Oct. 1 is before Oklahoma City's game against the Pelicans on Oct. 6. His status for that specific game had not been set as of the Sept. 6 report.
When will Hartenstein be back?
The injury report lists his expected return as Oct. 1.