He's not injured all the time. He had a rough go last year but he's one tough son of a gun. He had over 2,000 yds his first 2 years in the league and played in 29 of the 32 games and is only 23 years old. I know it's popular to say he's injured all the time but IMO it's a BS statement.
Julio Jones played in the exact amount of games his first 2 years and only played in 5 his 3rd year compared to Sammy's 8.
Sammy is a stud freak of nature. If you can't see that then you can't be helped.