The funnyman, who played Topher Grace's sidekick Steven Hyde in the long-running TV sitcom, began playing high-contact sports when he was in junior high school and he continued for several years, playing in three different leagues.
But, at the age of 36, Masterson admits he has been forced to abandon his need for speed on the ice and pick up an activity with less potential for physical harm after severely injuring his knee and bursa sacs, which are fluid-filled pouches located between the bone and muscle.
He tells PR.com, "All through Junior High and High School and into my mid-twenties I was obsessed with playing ice hockey. I played in three different leagues, four nights a week. I also played softball and I always had one or two softball leagues.
"Then I actually blew out my knee, tore my ACL and burst my bursa. I couldn't do anything for about six months. I stopped playing hockey after that, kept playing softball, and then started golfing about a year and a half ago. I've probably played about 200 rounds in a year and half."
And Masterson has even persuaded his actress wife Bijou Phillips into joining him on the golf course, adding, "It's pretty f**king fun, man! I took my wife out a few times and she's kind of digging it now, too. She's not a golfer because she's an equestrian, so she's got the horses that she's with every day. But I've gotten her to play three or four times, and she's actually pretty good."