Bengals' LB Muckelroy says he injured Achilles'

Bengals linebacker Roddrick Muckelroy says he ruptured an Achilles' tendon during the first practice of training camp and will be out for the season.

Muckelroy tweeted after Saturday night's practice that he had sustained the injury, which the team declined to confirm.

''My season over b4 it could even start!'' he tweeted. ''I'm a strong person though I can get pass this hard spot in life (hash)56 for life!''

Muckelroy was a fourth-round draft pick from Texas last year. He played in 14 games last season, mostly on special teams, and ranked second in special teams tackles.

Several players developed cramps on the humid evening. No other severe injuries were reported.