Johnson made his Triple-A Durham debut Thursday after putting a lower-back strain behind him, and while he didn't work deep into the outing, he had his swing-and-miss stuff working. He allowed three hits and walked one while striking out five over 3.1 scoreless frames.

He isn't officially listed on the IL, but Dykstra's reporting coincides with the fact Johnson hasn't made his season debut yet, so we can consider Johnson out indefinitely. He is a controversial prospect, as his minor-league results have been outstanding but he's a righty who leans almost exclusively on his fastball and slider, so there are some detractors who believe he fits best in the bullpen long term.