M 4x400 (Invite- Warriner anchors 44.58, 2012 Texas Relays)

Jeremy Wariner teams up with Bryan Miller, Marcus Boyd and Tabarie Henry to produce the fastest 4x400 time in the world with their 3:01.54 at the 2012 Texas Relays. Wariner, who has Olympic gold medal thoughts on his mind, looks like he's on the right track with this anchor split of 44.58!