George Kittle says he's grateful for all Gronk has done for the tight end position

Kittle feels comfortable when Jimmy Garoppolo is playing quarterback

Rumors may continue to fly about Jimmy Garoppolo but George Kittle opens up with Sports Illustrated's Robin Lundberg that he's more comfortable when Jimmy G is on the field and throwing the ball. Kittle shared his gratitude for Rob Gronkowski, saying that Gronk 'busted open the tight end' door.