PITTSBURGH -- The Milwaukee Brewers hope right-hander Mike Fiers makes it look as easy working out of their bullpen as he did while pitching in Triple-A Nashville's rotation.

Fiers joined the Brewers on Sunday before Milwaukee's 1-0 win over the Pittsburgh Pirates. He was recalled from Nashville on Saturday night when right-handed reliever Tyler Thornburg was placed on the 15-day disabled list due to tightness in his right elbow.

In 11 minor league starts, Fiers was 6-3 with a 2.53. He also was leading the Pacific Coast League with 92 strikeouts in 67 1/3 innings.

"When you're doing well, it seems a lot simpler than when you're struggling," Fiers said.

Fiers had a rough 2013 season both on and off the field. He was 1-4 with a 7.25 ERA in 11 games, including three starts, with the Brewers before being sent to the minor leagues.

Fiers asked to be assigned to high Class A Brevard County in the Florida State League, so he could be close to his Pompano Beach, Fla., to be near his mother, who died of lupus by the end of summer. His season ended June 15 when his right forearm was broken when hit by a line drive.

Now, Fiers has found his way back to the major leagues, where he was solid in 2012, going 9-10 with a 3.73 ERA in 23 games, including 22 starts.

"I just have to prove myself again, that I can pitch here," Fiers said. "I know I can, but I've got to do it on the field, and that's the main thing. You can talk about it and say what you've changed, what you've done, but up here is where it counts. You've got to get it done here."