05/08/2010 05:12 am ET | Updated May 25, 2011

Tiger Woods' Phone Habits: Five Number Changes In One Year

Tiger Woods changed his phone number five times in a single year, according to a PGA golfer who has texted Woods in the past. Mark Calcavecchia tells that after the fifth number switch, he said, "Man, you change phone numbers more than I change underwear."

It is safe to assume that Calcavecchia and Woods did not text each other like Tiger allegedly did with Jaimee Grubbs, the reported mistress who has stripped down for magazines twice in recent months. In a batch of text messages she says Tiger sent her, Woods wrote, "I need you." He also left a voicemail in which he begged her to change her voicemail greeting to throw his wife (PHOTOS) off the trail of mistresses.

Women linked to Tiger Woods