Kristian Campbell

Red Sox manager Alex Cora acknowledged Sunday that Campbell has been productive at Triple-A Worcester of late, but the skipper suggested that the 23-year-old still has work to do before earning another promotion to the majors, Jenn McCaffrey of The Athletic reports. "The same things that he struggled here [in the majors] with -- pitch recognition, covering certain shapes of fastballs," Cora said. "That's something that is hard, because he's not going to get that down there. The [velocity] here is harder. It's faster. Locations are on point here.".