Detroit Lions offensive tackle Emmett Cleary has pledged to donate his brain to the Concussion Legacy Foundation to help with research into CTE. The Legacy Foundation announced the donation Wednesday morning on its website.

"Everyone in football should be supportive of this research," Cleary said in the announcement. "I feel like you have responsibility to your teammates, other players in the league, and the next generation of football players to support the research. I would encourage anyone who loves the game to get involved with brain research."

He is the second active NFL player to pledge to donate his brain to research this year, joining Cincinnati Bengals offensive lineman Eric Winston.

More than 30 former NFL players have also pledged to donate their brains, as have athletes from other sports, including WWE Hall of Famer Kevin Nash and former US Women's National Team soccer player Brandi Chastain.