The 49ers entered this offseason with starting quarterback Brock Purdy entering the final year of his rookie deal. Despite not having that long-term deal in place, Purdy attended Phase 1 of the team's voluntary offseason workouts in April, as NBC Sports Bay Area's Taylor Wirth noted.

Kittle may be 31 years of age, but he appears to have plenty of game left in his tank. He recently agreed to a four-year, $76.4 million contract extension, which will not only keep him under contract through 2029 but also make him the NFL's highest-paid tight end.