KANSAS CITY, MO - SEPTEMBER 09: Cornerback Brent Grimes #20 of the Atlanta Falcons taunts guard Ryan Lilja #65 of the Kansas City Chiefs after the Falcons intercepted the ball during the game at Arrowhead Stadium on September 9, 2012 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
After losing Will Svitek for all of 2012 before the season even started, this is another huge blow. Grimes left the game on Sunday in the fourth quarter with what was initially reported as a calf injury. Now we know the seriousness of what transpired in Kansas City.
The Falcons started off with a big win over the Chiefs, but this puts a damper on the revelry afterwards. We'll await the rest of the story from Atlanta, but for now we know a huge piece on defense will be missing going forward.