Phil Mickelson poised to pocket landmark Pebble Beach Pro-Am win

PEBBLE BEACH — This one really matters to Phil Mickelson.

His grandfather was a caddie at Pebble Beach. Mickelson has won the AT&T Pro-Am four times, more than any player not named Mark O’Meara. And the U.S. Open returns here in June, the one title Mickelson craves more than all others.

Oh, and one more not-so-incidental detail: He’s 48 years old.

Few players remain relevant on the PGA Tour at that age, but Mickelson keeps chugging along. He won last year’s World Golf Championship event in Mexico City, threatened to win last month’s Desert Classic (he tied for second) and put himself in position again Sunday at Pebble Beach.