Did Jordan Spieth finally solve TPC Sawgrass in Thursday's opening 70?

PONTE VEDRA BEACH, Fla. – Jordan Spieth might have finally figured out how to handle TPC Sawgrass.

He’s treating it like a major test.

After being the 54-hole co-leader in 2014, Spieth has missed the cut in four of his last five appearances here. His prior form hasn’t much mattered – he just hasn’t been able to solve the Pete Dye riddle.

But Thursday was one of his most promising starts, carrying over his recent good form and signing for a 2-under 70, which put him just outside the top 10 and only five shots off the early lead at The Players.

So what was the key to his turnaround?

“You have to play this course almost like a U.S. Open venue,” he said. “If you don’t get a perfect number with the…