Tuesday’s news involving health and safety around sports:

* The NFL Players Association has made a $100 million grant to Harvard for concussions studies, according to the Boston Business Journal. Harvard beat out Boston University for the grant.

Lee Nadler, Harvard Medical School dean for clinical and translational research, Virginia and a professor of Medicine at Dana-Farber Cancer Institute, will direct the 10-year program, according to an announcement in the Harvard Gazette.

“Professional football players often develop severe disability related to a number of health problems, including head trauma, heart problems, diabetes, and joint and other skeletal injuries, as well as psychological stress. Americans have become increasingly concerned about the risks posed by participation in contact sports,” the announcement reads.

* The Toronto Star reported on how major injuries are a byproduct of extreme sports events like the X Games.

One year after the tragic death of Canadian freestyle skiing star Sarah Burke in a training accident just before the 2012 X Games, a slew of athletes were injured at this year’s Games, which wrapped up Sunday in Aspen, Colo.

American snowmobiler Caleb Moore, 25, suffered the worst injury on opening day last Thursday.

Moore, competing in snowmobile freestyle, attempted a backflip off a massive jump, lost control, crashed and was crushed by his snowmobile.

Diagnosed with a concussion, he was taken to hospital where bleeding and a contusion were found on his heart, USA Today reported.

Moore had emergency surgery Friday. He has since developed brain complications and remains in intensive care.

Colten Moore, his younger brother, separated his pelvis on the same ramp during his run.

* The Associated Press’ Jim Litke wrote in a column that the concussion issue is not going away in the near future.

* The Associated Press reported that Golden State Warriors center Andrew Bogut returned to the NBA on Monday night after sitting out most of the season while recovering from an ankle injury.

* The Miami Herald wrote in an advice column about how to spot ACL injuries and how to treat them.

* The Boston Globe reported that the Burlington (Mass.) varsity baseball coach has retired after 52 years.