Aside from a brief appearance for the Pirates during the 2016 season (9.35 ERA through 8.2 innings), Luebke hasn't pitched in the majors since 2012. He showed promise after posting a 3.29 ERA across 139.2 innings during his age-26 season, but Tommy John surgery derailed his career shortly thereafter. On the whole, Luebke posted a 3.52 ERA across 197 major-league innings with the Padres and Pirates.

The embattled lefty began the season on the disabled list after tweaking his hamstring late in spring training, but it seems like he's good to return to action. Luebke will likely work on lengthening out his outings in an attempt to land a spot in Chicago, although he'll likely fill an organizational depth role until that opportunity arises.

The left-hander had been experiencing an excellent spring prior to being sent to minor league camp (0.96 ERA in 9.1 innings pitched), but the injury bug bit again to hamper his ability to continue his successful ways. That being said, the issue doesn't appear to be too serious, so he should be back in action relatively soon. More details on Luebke's status should come forth as he ramps up his activity again.

He was in big league camp on a minor league deal with an invite, but did not make the cut, and will head to Triple-A Charlotte for the start of the season. Luebke has not been able to get his big league career back off the ground in recent seasons, and has logged just 8.2 MLB innings since 2012.

He was in big-league camp on a minor-league deal with an invite, but did not make the cut, and will head to Triple-A Charlotte for the start of the season. Luebke has not been able to get his big-league career back off the ground in recent seasons, and has logged just 8.2 MLB innings since 2012.