Tiger Woods is dealing with another off-the-course challenge. The golf legend announced on social media that his mother, Kultida Woods, died early on Tuesday. She was 78. Woods, who has yet to play on the PGA Tour this season, made the announcement with “heartfelt sadness.” No cause of death was announced.

Tiger Woods announces the passing of his mother, Kultida Woods, at 81, honoring her as his biggest supporter and lifelong inspiration.

Kultida Woods, the mother of 15-time major champion Tiger Woods, has died, her son announced on social media. She was 80. No cause of death is known at this time.