According to Aditi Kinkhabwala of the NFL Network, Pitta was taken to a Cleveland hospital for further evaluation.
Pitta fractured and dislocated the same hip during training camp in 2013. He played only four games last season.
Pitta had three receptions for 12 yards before he was injured. In the Ravens' first two games of the season, he had recorded 13 catches for 113 yards.
- Dan Gartland