Tempers boiled over during the Texans' indoor training camp practice Monday morning despite the air-conditioned climate.
A fight broke out between Texans defensive back Robert Nelson and wide receiver Keith Mumphery with some wild punches exchanged. Nelson landed at least one big swing to the side of Mumphery's helmet before the altercation was broken up and order was restored.
Practice resumed without further incident.
The Texans entire team got into a huge fight last year during training camp in a joint practice with Washington in Richmond, Va.
Texans coach Bill O'Brien has spoken with San Francisco 49ers coach Chip Kelly about policing behavior in practice with an agreement to throw players out of practice that get into brawls.