Baltimore Ravens tight end Dennis Pitta dislocated his hip in practice and is expected to remain sidelined throughout the preseason and for the Sept. 5 regular season opener against Denver.
The injury occurred during Saturday's practice session when Pitta collided with safety James Ihedigbo in the back of the end zone vying for a pass from Joe Flacco.
Pitta lay prone for several minutes before being carted off the field.
After practice, coach John Harbaugh said the defending Super Bowl champion Ravens will be forced to play their opener in Denver without their top pass-catching tight end.
Pitta was preparing for his fourth season with Baltimore. The 6-foot-4, 245-pounder caught 61 passes for 669 yards and seven touchdowns last season.