Now that Cook has signed a four-year, $48 million contract extension, the Bills have to decide if they want to keep this breakdown. On the one hand, it probably does keep Cook nice and fresh. On the other hand, the Bills are now paying Cook a lot of money to keep him on the sideline more than half the time.

Buffalo Bills' star RB James Cook signed a four-year extension worth $48 million, but not everyone heard the news when it happened

Buffalo Bills running back James Cook has agreed to a four-year, $48 million extension with the franchise, which includes $30 million guaranteed, per ESPN's Adam Schefter and multiple reports. Cook attended mandatory mini camp earlier this summer and decided to end his "hold-in" on Tuesday as a full participant in practice this preseason.