Baltimore Ravens quarterback Joe Flacco smiles at back up quarterback Tyrod Taylor during practice Saturday, Jan. 26, 2013 in Owings Mills, Md. (AP Photo/Gail Burton).

Photo by: GAIL BURTON

Baltimore Ravens quarterback Joe Flacco smiles at back up quarterback Tyrod Taylor during practice Saturday, Jan. 26, 2013 in Owings Mills, Md. (AP Photo/Gail Burton).