On a windy afternoon, Smith recovered from a bogey at the par-four first to produce four gains in six holes and reach the turn in 35, before adding two further birdies in a solid four-under 68.
The 45-year-old shares the lead with compatriot Brown, who finished with back-to-back birdies in a third round 67 to also move six-under for the tournament.
Brown is a former winner at the Trump International-Puerto Rico and was pleased with his performance in tough conditions, telling reporters: ???I got a few more putts to go in today and ended up shooting a good round.
“The toughest thing about this course is it’s all cross-winds, so you very rarely get any downwind or into-the-wind shots. The wind has been so strong that you can’t really play shots that hold up against it.???
Smith, searching for his first PGA Tour title since winning the 2002 Buick Classic, believes not having to qualify for this week???s event like he usually does for tournaments has helped his performance.
???When I get here, it’s not like getting in Tuesday night and then trying to hustle to the tournament and then playing,??? the world No 911 said. ???I can kind of mentally prepare for playing for it.
“I’m starting to get comfortable playing golf again, which is nice. All three days have been fun. I’m just trying to keep taking steps. I feel like I’m taking steps.”
A two-under 70 from Jon Curran moved the American within one stroke of the lead, tied with Emiliano Grillo after the Argentine posted a par 72 to stay on five-under for the tournament.
Overnight leader Alex Cejka dropped four strokes on the final four holes, with a double-bogey at the 18th after firing his tee-shot out of bounds seeing the German fall to tied-fifth.
Veteran John Daly moved in contention at the top of the leaderboard after firing four consecutive birdies in his first five holes, before posting two bogeys and a double-bogey on the back nine to stay in four adrift on two-under.
With 36 players within five shots of the lead heading in to the final round, victory and the $540,000 prize money is still very much up for grabs.??