Thunder's Hartenstein out at least 10-14 days with calf strain

Oklahoma City Thunder center Isaiah Hartenstein is sidelined a minimum of 10-14 days with a right soleus strain, the team announced Saturday.

It's unclear when Hartenstein sustained the injury, but he was ruled out for Friday's game against the Phoenix Suns due to ankle soreness.

Hartenstein will miss at least four more contests under the timeline provided by the Thunder.

Fourth-year big man Jaylin Williams is expected to fill Hartenstein's spot in the starting lineup.

Oklahoma City signed Hartenstein to a three-year, $87-million contract in July 2024.

The big man played a key role in last season's title run, averaging 8.1 points, 7.5 boards, and 2.2 assists across 23 playoff appearances.

Hartenstein was off to a strong start to the 2025-26 campaign, averaging a career-high 12.2 points and ranking sixth in the NBA with 10.7 rebounds per game.