George Kittle has already established himself as one of the best tight ends in the NFL and could be on his way to becoming one of the best tight ends in history, but that doesn't mean he is satisfied.

Graphic designer Mike Stadlmann has been photographing Kittle's workouts in Nashville this offseason, and let's just say that the San Francisco 49ers star looks shredded.

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Kittle is coming off of a 2019 campaign in which he played 14 games and hauled in 85 receptions for 1,053 yards and five touchdowns en route to a Pro Bowl appearance and a First-Team All-Pro selection.

The 26-year-old, who played his collegiate football at the University of Iowa, was originally selected by the 49ers in the fifth round (146th pick overall) of the 2017 NFL Draft.

He appeared in 15 contests during his rookie year and was a rather pleasant surprise, catching 43 passes for 515 yards and a couple of scores. Then, in 2018, Kittle broke out, participating in every game and snaring 88 balls for 1,377 yards while reaching the end zone five times, notching his first Pro Bowl selection.

With San Francisco currently lacking a true star at the wide receiver position, Kittle will almost surely be getting a hefty amount of targets from Jimmy Garoppolo once again this coming season.

This past year, the Niners won 13 games, captured the NFC West division crown, and locked up the No. 1 seed in the conference. They proceeded to make it all the way to the Super Bowl, where they blew a 10-point second-half lead in a loss to the Kansas City Chiefs.