The Freedom From Religion Foundation plans to sue Clemson University over the inclusion of Christianity in the school's athletic program, according to reports.

The Freedom From Religion Foundation said it originally filed a complaint in 2014 against Clemson over the role football coach Dabo Swinney's Christian faith plays in the program, Breitbart News reported.

"At this point we don't think the university has taken appropriate corrective action," FFRF staff attorney Patrick Elliott told the conservative website. "We still have concerns about how that program is being conducted. The university needs to appropriately monitor religious activity in the program."

Elliott said among the complaints is the team's church day events, coaches praying with players and its chaplaincy program.

The foundation previously sent letters to both Alabama, Clemson's opponent in tonight's college football national championship game, and Auburn in regards to their chaplaincy programs. Neither university changed programs in response to the letters.

Swinney, an Alabama native who is outspoken about this faith, has said he has no plans to change how the football program operates but stressed the team welcomes players of all faiths.

"We weren't doing anything (wrong.) Ain't nothing to change," Swinney told the Post and Courier last year. "People have just got to be who they are, it's that simple. We've never tried to force anything on anybody. Everybody who comes here to Clemson knows who we are as people. There's no surprises in that regard."

Swinney said there is no basis in the idea coaches make game decisions based on religious participation or faith.

"We don't force our players to do anything. There's nobody disciplined if they don't go to church on Sunday or go to chapel, but those things are available for anybody who wants to go," Swinney said. "Everybody has the opportunity to grow if they want to, spiritually, but that's a personal thing. We play the best football players. As far as me personally, I am who I am. I don't apologize for that."

Updated Jan. 12 at 9:20 a.m. to include additional comments from Coach Dabo Swinney.