Tiger Woods is mourning the death of his mother, Kultida. Woods shared the sad news in on social media, describing his mother as a “force of nature all her own” with an “undeniable” spirit. “She was quick with the needle and a laugh.

Tiger Woods says that his mother, Kultida, has died at age 80. The golfer credited her for his success and encouraging his signature look of red shirts.

Kultida Woods, the Thai-born mother of Tiger Woods who instilled his dominant spirit and encouraged him to wear a red shirt on Sunday as his power color, died Tuesday. Woods announced the death of his 80-year-old mother in a social media post.