toughest NFL players...

1)David "Deacon" Jones,played without an injury,wanted to rip off your head throughout his career with the Los Angeles Rams,and San Diego Chargers,"owns" sack record(before they kept that stat,starting,in 1982)... 2)Brett Favre-321 games started in a row,including 297 regular season games,at quarterback... enough said... 3)Jim Marshall,played in the cold with over 200 starts,in Minnesota...