The only stars at the AT&T Pebble Beach Pro-Am this year will be the players.The spike in COVID-19 cases in California led organizers to cancel the pro-am portion of a tournament with a long history of entertainers and celebrities mixing with the pros on one of the most picturesque courses in the country.That means no antics from Bill Murray, Justin Timberlake breaking out into song while waiting on a tee box or even the latest fashion statement from rap singer Macklemore.The tournament also is