from Ansar Khan of Mlive,
2019-20 outlook: Hronek was expected to win the competition between young defensemen and earn an NHL roster spot out of training camp but wasn’t ready, so he was demoted after playing six games as an injury replacement. He returned to Detroit in mid-December and was sent back to Grand Rapids for a couple of weeks in February before joining the Red Wings for good on Feb. 17.
He improved defensively during his time in the AHL and was much better the final seven weeks of the season.