Texas A&M is suing the Indianapolis Colts for "unauthorized use to its 12th Man trademarks," according to Darren Rovell of ESPN.com.
The Colts inducted the "12th Man" into their Ring of Honor in 2007 and inscribed that name in the rafters at the RCA Dome, a nod to the team's fanbase. That Ring of Honor was brought to Lucas Oil Stadium. The team has also utilized a 12th Man award given to the fan of the game.
Texas A&M has long referred to its fans as the 12th Man, however, and it has run into legal issues with professional teams in the past. The school sued the Seattle Seahawks in 2006 for infringement, and the Seahawks reached a settlement with Texas A&M that allowed the NFL team to use the expression until 2016. The team has since changed the slogan for CenturyLink Field from “Home of the 12th man” to “Home of the 12s."