Practice rounds for the AT&T Pebble Beach National Pro-Am will get underway today. 312 of the world’s top golfers are expected to tee off from Pebble’s three courses. Phil Mickelson and Dustin Johnson will lead a group of professional players, while other players like Ray Romano and Kenny G. are also scheduled to appear. New additions to the venue this year include three-tiered stadiums situated around the 18th hole and a new pedestrian bridge. Players are expected to tee-off for the main competition Thursday.