San Francisco 49ers tight end George Kittle, who is recovering from a calf injury that kept him on the sideline most of the week, is expected to play Sunday against the visiting Seattle Seahawks, a source told ESPN's Adam Schefter.

Kittle, who is listed as questionable, has been dealing with swelling and pain in the calf since the Niners' Week 1 win against the Detroit Lions. He was a limited participant in Friday's practice after he did not partake Wednesday or Thursday.

After Friday's practice, Kittle said he would "do everything I can" to be able to play in Sunday's pivotal, early-season matchup with division rival Seattle.

"And then if the body says I can go, I'll be out there," he said.

Kittle, 27, is second on the team in receptions (15) and receiving yards (187) through three games.

Niners running back Elijah Mitchell, who is listed as questionable with a shoulder injury, will not play Sunday, a source told Schefter.