John Daly wore his pink pants on Sunday at Wentworth, while Rory Sabbatini went with a pink shirt when he won the Byron Nelson Championship, both sartorial choices to honor Phil Mickelson's wife, Amy, who has been diagnosed with breast cancer.
Now, the PGA Tour Wives Association is getting involved.
In a memo being circulated at Colonial, the group is asking all players and wives to take part in a "Pink Out" on Saturday by wearing pink to show support for Amy Mickelson.
The association is working with title sponsor Crowne Plaza and the Susan G. Komen Foundation to raise awareness of breast cancer.
Mickelson is the defending champion this week, but has taken an indefinite leave from the PGA Tour. He is home in San Diego, awaiting test results this week to determine the extent of the cancer.