Footprints in history: Ravens selling chunks of stadium turf

Want a footprint in history? Well, Baltimore Ravens fans, you're in luck.

Proving once again that everything in sports can be a collectable, the Ravens are selling chunks of their stadium's artificial turf to fans. Baltimore is removing the synthetic surface this week and replacing it with natural grass for the 2016 season.

Thankfully, all of the proceeds from the pieces of green fibers will go to the Ravens' charitable foundation.

The Ravens are promoting the sale as an opportunity for fans to purchase the turf where the Ravens made their Super Bowl run in 2012 and Ray Lewis played his last game in Baltimore.

The pieces will come from between the 20-yard lines at M&T Bank Stadium. They will be cut into small squares and packaged in commemoratives cases, and fans will be able to purchase them closer to the preseason, according to the team.

The Ravens aren't the only team to sell their turf. In 2003, Ohio State sold pieces of Ohio Stadium's surface -- the school called it "title turf" -- in jars for $40. That was quite a bargain compared to Notre Dame, which sold chunks of its stadium turf for $149.99 (of course, it included shipping) in 2014.

The Ravens didn't list a price for their turf, but can you truly put a price tag on sentiment? Or is that sediment?