New England Patriots tight end Rob Gronkowski is listed as questionable for Sunday's game at the Buffalo Bills, according to NFL.com. Gronkowski showed up on Friday's list with a hip injury. If Gronkowski does not play Sunday, he will join Aaron Hernandez, who has been out with an ankle injury. The two tight ends combined for offseason contracts worth $95 million. Gronkowski has 14 receptions for 156 yards with two touchdowns in three games. He has 22 catches for 314 yards with seven touchdowns in four games against Buffalo for his career. Because of Hernandez's absence, Gronkowski has been asked to block more so he has received fewer targets this year. As a result, wide receivers Wes Welker and Brandon Lloyd have been more involved in the offense.