1. I don't think it was a dirty play. I'm not even sure it was intentional. The Baltimore player is sprinting down the field and it looks like Cribbs just walks in front of him. And even if it was intentional, Cribbs had only taken about a step after he had just pitched it. NOT DIRTY.
2. If you are competitive enough to make it to the NFL, I don't think you are going to fake injuries unless it somehow helps your team.
3. Stupid call by Mangini. He should be embarrassed.