If ever the Cubs would need classic Kyle Hendricks it’s now, in the thick of a playoff chase. Marcus Stroman’s right rib cartilage fracture will keep him out indefinitely, and the Cubs hope reliever Drew Smyly will be up to the task when he starts Tuesday, so Hendricks is the next best bet behind Justin Steele. On Sunday, Hendricks delivered during a 4-3 win over the Royals — backed by home runs from Seiya Suzuki and Miguel Amaya — to close out the series 2-1. During a challenging August in which his ERA inflated to 4.00, he showed a little vintage Hendricks, touching 90 mph a couple of times. “Yeah, it’s been a while,” Hendricks said.