Nationals signed OF Mike Cameron to a minor league contract. The deal also includes a spring training invite. Jim Duquette of MLB Network Radio hears that he'll earn $1 million if he makes the Opening Day roster, while the contract includes $750,000 in performance-based incentives. Cameron, 38, batted .203/.285/.359 with nine home runs and 27 RBI over 269 plate appearances this past year between the Red Sox and Marlins. He's better off as a fourth outfielder and right-handed bat off the bench at his advanced age, but his role for 2012 will likely hinge upon whether the Nationals think Bryce Harper is ready for the big leagues.