What is National Tight Ends Day? History of NFL holiday – NBC Sports Bay Area & California
Why 49ers tight end George Kittle is the NFL's second-best tight end in 2018 - Niners Nation
George Kittle, 49ers 'making progress' on long-term deal
Super Bowl 2020: 'Weak' offensive pass interference on George Kittle costs Niners points before halftime
George Kittle - Wikipedia
Source -- George Kittle, 49ers reach 5-year, $75 million extension - ESPN
How 49ers All-Pro George Kittle Is Making 'Tight End U' Kind of a Big Deal
George Kittle - Wikipedia
Film Study: What makes George Kittle so valuable to the San Francisco 49ers
George Kittle Misses Thursday Practice, Status For Week 2 Game Unclear