By Anthony Caruso III
Posted: October 12th, 2014 at 2:15 pm EST
The Cleveland Browns has lost center Alex Mack for the rest of this game against the Pittsburgh Steelers. Mack was carted off the field with an injury.
At the moment, it is not clear how serious his injury is. He has played in five games this season.
Mack has been with the Browns since the 2009 season. Each season, over the past five years, he started all 16 games.
Now, he is looking at missing his first game.
This off-season, he signed a restricted free agent contract with the Jacksonville Jaguars. The contract was for 5-years, $42 million, which the Browns almost immediately matched.