Browns guard Joel Bitonio has a mid-foot injury and will be out for an extended period of time, Mary Kay Cabot of Cleveland.com tweets. Bitonio has been playing through the injury for some time, but that has only exacerbated the issue. 
Last year, Bitonio was placed on IR in December when an ankle injury forced him out of action. He was rated as the No. 33 guard in the NFL by Pro Football Focus when he was shut down last year. This year, through five games, PFF has him rated as the ninth-best guard in the league. He has earned an overall grade of 83.3 with roughly even scores for his pass blocking and run blocking.
The Browns have had terrible luck with injuries so far this season and Bitonio is just the latest starter to go down. It remains to be seen how long the 25-year-old will be sidelined for.