Former NFL player David Tyree's anti-gay remarks have created controversy as he returns to the New York Giants.

The Giants announced Tuesday that Tyree, who played in the NFL for seven seasons, would be the team's next director of player development.

Tyree strongly opposed passage of a bill allowing gay couples to marry in New York approved by lawmakers in 2011.

In a series of tweets at the time, he told followers that there is “no scientific data to support the claim of being born gay” and he's “met former homosexuals. That's the #truth.”

He also starred in a video for the National Organization for Marriage (NOM), the nation's most vociferous opponent of marriage equality.

“What I know will happen if this does come forth is this will be the beginning of our country sliding toward, it is a strong word, but anarchy,” Tyree said in the video.

Chad Griffin, president of the Human Rights Campaign (HRC), the nation's largest LGBT rights advocate, criticized the hire in a blog post.

“When did Tyree decide to be straight?” Griffin rhetorically asked. “The idea that someone can change their sexual orientation or gender identity is ludicrous, and the New York Giants are risking their credibility by hiring someone who publicly advocates this junk science. His opposition to basic legal equality aside, David Tyree’s proselytizing of such dangerous practices goes against the positive work the Giants organization has done in recent years.”

“As a player, David Tyree made clear that his misguided personal views trump his responsibility to his teammates and his employer. Tens of thousands of committed and loving gay and lesbian couples have wed in America over the last ten years, and Mr. Tyree is undoubtedly still holding his breath waiting for society to crumble.”