Michael Sam, who first made headlines earlier this year as the first openly gay NFL player, as of Tuesday afternoon is no longer an NFL player.

The Dallas Cowboys waived the rookie defensive end from the practice squad to make room on their roster to sign second-year linebacker Troy Davis.

“I want to thank the Jones family and the entire Cowboys organization for this opportunity, as well as my friends, family, teammates and fans for their support,” Sam said on Twitter. “While this is disappointing, I will take the lessons I learned here in Dallas and continue to fight for an opportunity to prove that I can play every Sunday.”

Sam was drafted in the seventh round in May by the St. Louis Rams but failed to make their 53-man roster at the end of the preseason. He then was picked up by the Cowboys and added to their practice squad.

The 6-foot-2, 261-pound Sam, whose strength is as a pash rusher, is free to sign with another team.