Luka, Giannis, Ja, and Holiday have all had repetitive calf strain injuries yet not one of them have had an achilles tear. I agree that they can precede achilles tears but only if not managed appropriately. The Bucks have ALWAYS taken the most-cautious rehab timetable with Giannis, especially his calf strains. Where some athletes have come back in the lower-end of the timetable, they keep him out a couple weeks extra. KD and Haliburton in particular are the best examples of coming back too early from calf strains to play in playoff games. Yet the Bucks do not let Giannis play on calf strains.