- 49ers’ Kittle: Signed 4-year, $76.4M extension ESPN
- George Kittle agrees to four-year extension with 49ers NBC Sports
- 49ers break with tradition with extension to make George Kittle the highest-paid tight end in football Niners Nation
- NFL news roundup: George Kittle at 49ers facility, discussing extension; Raiders release six players NFL.com
- 49ers’ Brock Purdy contract extension for $52 million per year takes the spotlight after NFL Draft sportingnews.com