NFL players and fans are ramping up pressure on teams to tear out AstroTurf in favor of real grass. After another star athlete went down on an artificial surface, a telling statistic – a 28 percent higher injury rate – has become a rallying cry.

Philadelphia Eagles center Jason Kelce has disclosed a startling belief that his “brutal NFL career” will leave him with CTE. His recent social media posts touched on a private health battle, reflecting the growing concern over brain injuries in professional football.

The global soccer players’ union, FIFPRO, has cautioned that extreme heat faced during the Club World Cup in the United States could become an even greater problem at the next two men’s World Cups. The warning underscores growing concerns about player safety amid rising global temperatures.