49ers WR battle 

May, 18, 2013
5/18/13
11:49
AM ET
The San Francisco 49ers are expected to use the legs of Colin Kaepernick a lot in 2013, but not exclusively so. Part of his appeal is that while he's always a threat to take off for the corner, he also can throw the ball to his receivers. That's where the question marks truly lie, though.