Baltimore Ravens center Matt Birk has voiced his opposition to same-sex marriage, a view that opposes that of teammate Brandon Ayanbadejo.
In an article printed Sunday in the Minneapolis Star-Tribune, Birk wrote, "Ideas have consequences, and laws shape culture. Marriage redefinition will affect the broader well-being of children and the welfare of society. As a Christian and a citizen, I am compelled to care about both."
Birk is a Roman Catholic and father of six.
Ayanbadejo previously spoke in favor of gay marriage.
Speaking at the Ravens training complex, Birk said, "It's not my goal to engage in any debates with any one person or persons. They have their opinions. It just happens we disagree on what marriage is in the public forum."