Phil Mickelson was closing in on a fifth Pebble Beach Pro-Am title when darkness halted play in the final round of the weather-hit US PGA Tour tournament.
CBS will provide live coverage of the event via its website, with coverage starting at 11 a.m. ET and continuing until play is finished.
Expanding on why he felt his performance at Pebble Beach boded well for Augusta, the three-time Masters victor said: "The two areas that you have to be at your best to play well at Augusta are you've got to hit the ball long and have a really good short game and those were two areas that were very helpful here". He played the final 26 holes in cold, damp, and windy weather without a bogey. He preferred to suspend play with his ball on the 16th green, resuming the tournament on Monday when the greens, which took a beating from rain Saturday night and an impressive hailstorm Sunday, would be fresh. "But I totally get where he's coming from".
"There's still a glimmer", said Casey said of his chances, who was level par for his round when play was suspended.
Mickelson had to return to Pebble Beach on Monday to complete his 44th Tour victory and did so easily, finishing at 19-under par with a 65. A missed cut in Phoenix, Mickelson said, was due in part to a driver experimentation that he quickly abandoned. "Sometimes I get in my little bubble and don't see the bigger picture".
He started the day three shots off Casey's lead but roared to the top of the leaderboard with six birdies that put him 18-under for the tournament with two holes remaining. "No matter how good your drive is, you've still got to roll them and still got to make putts, and I didn't putt very well today".More news: Watch Elsa ride icy waves in first Frozen 2 trailer
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"There's still a glimmer", Casey said of his chances.
Joining Casey and Mickelson on the course Monday was Don Colleran, a FedEx executive who with Casey led the two-man Pro-Am competition by one stroke at 33-under-par.
"(It means) absolutely nothing because it's nothing like the course we'll see", Mickelson said.
The last time the final round was played on Monday was in 2000, when Tiger Woods rallied from a five-shot deficit.
Hale Irwin, who won the 1990 edition of the US Open at 45 years and 15 days old, is the oldest US Open victor to date so the stats are really against Phil Mickelson, who turns 49 on the Sunday of this year's edition.
He will return to Pebble Beach in June for the US Open, where he made his pro debut in 1992. I had a 5-6mph jump in the last three or four months.