Medlen has been brilliant for Atlanta since replacing Jair Jurrjens in the rotation, allowing just one earned run in each of his three starts. He earned his first quality start in his last outing, scattering five hits and striking out seven over 6 1/3 innings against the Mets.
"[I have an] aggressive style and that's kind of what you need as a starter," said Medlen, who started 17 combined games for Atlanta in 2009 and 2010. "You need to be aggressive and go deep into games to save the bullpen.
"You've just got to be confident, I think. I've just accepted my role, whatever skill set I have, just to apply it in whatever role I have. Whether it's starting or relieving, I try to stay aggressive, stay confident and try to get guys out."
Taking the hill for San Diego will be Jason Marquis, who tossed a two-hit shutout against the Pirates in his last start. Marquis took a no-hitter into the seventh inning before it was broken up on Travis Snider's infield single.
"It was very important to get the complete game," Marquis said. "You always want to finish what you start. It was my first one this year, and I'm excited about that. It's fun to be standing on the mound when the game's over."
"He threw the ball well," Padres manager Bud Black said. "I think right from the beginning you could see the movement on the fastball and the sinker, and I think the slider came and went a little bit, but when he needed to throw a good one, he did. I think it was all about the getting the grounder and keeping the ball down. When he had to throw a strike, he did. It was fundamental pitching, he made good pitches."
Braves: Wilson getting cortisone shot
Braves shortstop Jack Wilson, on the 15-day disabled list with a dislocated right pinkie since July 14, said he will receive a cortisone shot on Sunday and is targeting a return to Atlanta on Sept. 1.
Wilson hopes that the combination of the shot and rest will enable the swelling to reside to the point where he can go back on a rehab assignment next weekend. His rehab assignment at Triple-A Gwinnett was cut short last week due to the swelling.
"Before, it was go down and try to play with it, see if you can get through it," Wilson said. "As long as they threw a middle-inside fastball, it was fine. Everything else, you just couldn't. Obviously that didn't work out."
Wilson had been the Braves backup shortstop before he got hurt, most recently behind Andrelton Simmons. But with Simmons also on the 15-day DL with a broken right pinkie, Paul Janish has served as the starting shortstop for the last month.
Padres: Street remains out
Huston Street, who suffered a strained left calf last Friday in Pittsburgh, is still walking with a limp and will need more than 15 days on the disabled list before he's able to return.
"This is going to be past the 15 days," Black said.
Street was diagnosed with a strained left calf after he ran from the mound toward first base on the final play of the team's victory over the Pirates, which ended on a ground ball to first baseman Yonder Alonso. He was officially placed on the disabled list the following day.
"I was coming off the mound and pulled my calf," Street said. "It's a weird thing to explain, other than you just feel something pinch in there, and you hope you wake up in the morning and it's better. I've never really done anything to my calf. Hopefully it heals sooner than later. I'm just thinking right now of a way to get it healed."
Marquis' complete game shutout over the Pirates on Saturday lowered his season ERA by nearly half a run, from 4.10 to 3.66.