David Buchanan talks about as fast as he pitches. From talking to him, it’s easy to tell that this spring is the 25-year-old’s first time around a major league spring training.

On the field, however, that is certainly not the case. Buchanan, a late invitee to big league camp, has turned heads. In about three weeks, he has transformed from nearly anonymous to the other half of the Phillies’ fifth starter competition. With his excellence this spring, the competition for a fifth starter has come into focus.

Buchanan breezed through his toughest test yet of spring Tuesday, silencing a stacked Braves lineup over three innings. Seven of the Braves’ projected regulars started Tuesday’s game. Among them, only Jason Heyward — in the first at-bat of the game — singled.

The competition was the best Buchanan has faced all spring.

“No kidding,” he said.

The Braves pounded Sean O’Sullivan, another possible candidate for the fifth-starter role heading into Tuesday, for six runs on eight hits in 12⁄3 innings pitched. It’s safe to say that after Tuesday’s dueling performances the race for that spot is down to Buchanan and Jeff Manship, who has also fared well this spring.

“(Buchanan) continues to throw well,” Phillies manager Ryne Sandberg said. “He’s probably the only bright spot. Him and (Antonio) Bastardo today. Three qualityinnings, same type of stuff. Down in the zone, ground balls, did a nice job.”

This all changes, however, should the Phillies scrounge around outside the organization for pitching help. But Phillies general manager Ruben Amaro Jr., if you hold him to his word, said a week ago that the solution will likely come in house.