He limped off the field , and then headed to the Packers locker room .
He appeared to have plenty of room to run when defensive back Antwon Blake slipped , but instead Nelson tumbled to the turf .
Nelson limped off the field , and then headed to the Packers locker room .
He appeared to have plenty of room to run when defensive back Antwon Blake slipped , but instead Nelson tumbled to the turf .