Mike Clevinger
Remaining on the topic of underrated, Mike Clevinger is more deserving of this - and for his career as a whole. With a career 3.43 ERA and .614 winning percentage, he is one of the better starters to have never been named an All-Star.
It tells you something that Clevinger's 3.88 ERA so far this season, would project to only be the fifth-best in his seven-year career. He has an impressive arsenal, highlighted by a legit fastball and excellent changeup.
Arguably the biggest concern surrounding the 32-year-old, is his injury issues ever since being drafted. In this respect, he has been out since mid-June with a right bicep injury and is not expected to return until after the All-Star break.
Obviously everyone concerned will want to see how Clevinger performs once he's back. However, perhaps the Blue Jays can use this to their advantage.
As referenced when discussing Giolito, the White Sox are not a genuine challenger this year. As such, maybe now is the right time to cut bait with a veteran, injury-prone starter who won't be around long-term anyway.
Chicago probably won't need too much in return for Clevinger, who would get the opportunity to join a ballclub with World Series aspirations. Even in the worst case scenario for the Blue Jays, there is a mutual option for next year which includes a $4 million buyout.