The foundation that runs the Bing Crosby National Pro-Am said yesterday it would stand by its "solid commitment" to AT&T despite Kathryn Crosby's offer to reconsider cutting the family's ties to the golf tournament if it turned down AT&T sponsorship.

Kathryn Crosby said she was disappointed by the foundation's decision, saying the tournament could make more money for charity and golf purses by accepting pledges of support from other individuals and companies that didn't demand their names be attached to the tournament's title.

The late singer's wife announced Monday that, because of efforts by the PGA and the foundation to turn the tournament into what she called "another corporate sideshow," she was ending a tradition Crosby began in 1937 of pairing professional golfers with show business and other sports celebrites.

On Thursday, she said that after being "besieged by requests" to save the event, she would reconsider her decision if "those who worked to undermine the integrity of the tournament step aside in favor of Bing's friends" . . .

Former champions Craig Stadler and Fred Couples will join defending champion Greg Norman, leading money winner Curtis Strange, Mark O'Meara and Hale Irwin in the PGA Tour's Kemper Open at Congressional Country Club, May 27-June 2 . . .

Mark Guttenberg, head pro at Penderbrook, made four birdies and no bogeys for 67 to win a Middle Atlantic PGA pro-am yesterday at Montgomery Village.