Kansas City Royals starting pitcher Danny Duffy kept rolling by shutting down the Twins for seven innings in his first start back from the All-Star break. Duffy allowed just five hits while walking three and striking out four, and the bullpen held on just well enough to give Duffy his sixth win of the season. Duffy has been a new man recently, posting a shiny 2.58 ERA and 5-2 record since May 24. Unfortunately, there are a lot of concerns built into those numbers. Pretty much all the red flags [...]