The bad news? The team’s medical staff is still trying to determine what is wrong with him.
Thornburg was placed on the 15-day disabled list on Saturday after complaining of soreness in his right elbow. Team physician Dr. William Raasch reportedly reviewed Thornburg’s MRI, but referred the right-hander to a radiologist.
This is Thornburg’s first season as a full-time reliever and he’s appeared in 27 games and worked 29.2 innings this season.
The 25-year-old got off to an outstanding start, posting a 0.61 ERA and 0.750 WHIP in April, covering 14 games and 14.2 innings, with 17 strikeouts.
Since then, however, it’s been dicey—in 13 appearances in May and June, Thornburg has given up 13 earned runs in 15 innings (a 7.80 ERA) with a WHIP of 2.267.
He’s also walked 16 batters in those 15 innings after issuing just five free passes in his first 14.2 innings of work.
Thornburg started seven games last year and relieved in 11, posting a 2.03 ERA and 1.185 WHIP in 66.2 innings, and made the club out of spring training for the first time in 2014.
In the minors, he was almost exclusively a starting pitcher—66 of his 69 career appearances were starts.
Thornburg was a third round pick of the Brewers in the 2010 first-year draft out of Charleston Southern.