“When you have a small prevalence of injury, it’s hard to scientifically study that,” DiFiori said. “Typically over the last 15 years, we average about two Achilles tendon injuries per year. Last year, we had seven. That’s a lot. One year prior, also with a high pace of play, we had zero. We’re taking it very seriously. We’re concerned about it, but I don’t think we have our finger on what’s the driver here or what factors may have led to last season’s unusually high number.”
