Tiger Woods is taking an indefinite leave from professional golf to work on saving his family, using the word "infidelity" for the first time in a statement posted on his Web site.

Woods says he is aware of the disappointment that "my infidelity" has caused to his wife and children. He says he might not be able to repair the damage, but he wants to try.

He did not disclose Friday evening how long of a break he would take from the PGA Tour. He again asked for privacy, saying his family would need a "safe haven" to try to heal.