Caution with 21 laps to go

The fifth caution just came out as Juan Pablo Montoya spun. This will bunch the field back up for the field 18 or 19 laps left. We'll see if the sore-footed Brad Keselowski, Jimmie Johnson or Kurt Busch or someone else can give him a challenge. Hamlin takes a big hit on pit stops due to a dropped lug nut when the tire moved a little.