Article Photos: Vikings planning on Erin Henderson at MLB 1/1

Minnesota Vikings quarterback Christian Ponder, right, and wide receiver Jerome SImpson, left, work on a rope pull exercise during conditioning workouts for the NFL football team, Wednesday, May 1, 2013 in Eden Prairie, Minn. Uncovering his head to watch is wide receiver Greg Jennings, right. (AP Photo/Jim Mone)