"Oh, he's a real (postseason) option," Roberts said. "I don't know what capacity, but when you're playing meaningful games, young player, you're looking at how they handle their emotions. And Emmet is, I like to use the word unflappable, and it's a huge compliment. And he's unflappable."
Hader will not throw for three weeks after being diagnosed with a left capsule shoulder strain on Friday. He will fill that time with rest and strengthening exercises and be re-evaluated to see if he can resume a throwing program.
Though cross-town deals with the Chicago White Sox are exceedingly rare, the Cubs have a lot of background information on Houser, who has suddenly re-emerged to become the new ace on the South Side.