A report written by Maple Leafs journalist David Alter has confirmed that Mitch Marner is dealing with a high ankle sprain. According to the reports surrounding this diagnosis, Marner is day to day for the time being.
If the ankle sprain for Marner is truly a mild one then the expected recovery is anywhere from one to three weeks. With the medical staff that professional sports teams have sooner rather than lately is likely. However, with a sprain, they often take much longer to fully heal.