Tiger Woods abruptly withdrew from the Genesis Invitational at Torrey Pines on Monday, saying he was still processing the death of his mother. Kultida Woods died unexpectedly last Tuesday at the age of 80.

Woods, the tournament host of the Genesis Invitational, said he hoped to be at Torrey Pines later in the week and “appreciate the continued kindness since my Mom’s passing.”

Kultida Woods, the mother of Tiger Woods, golf’s biggest star, died Tuesday, according to the 15-time major winner. He did not provide give her cause of death.