Source -- George Kittle, 49ers reach 5-year, $75 million extension - ESPN
George Kittle - San Francisco 49ers Tight End - ESPN
George Kittle on Brock Purdy's talent: He's consistent & doing a great job!
Report: George Kittle fined for vulgar anti-Cowboys shirt, National
Four 49ers featured on ESPN's Top 100 NFL players list – KNBR
Report: George Kittle fined for vulgar anti-Cowboys shirt, National Sports
Who is George Kittle? The 49ers self-made star. - The Washington Post
George Kittle - San Francisco 49ers Tight End - ESPN
49ers' George Kittle looking for more than top TE money - ESPN
NFL decision makers weigh-in on who the best tight end in the NFL is now that Gronk is retired - Niners Nation
San Francisco 49ers' George Kittle says tight ends 'do everything,' deserve respect - ESPN