A Timeline of Jeremy Renner's Recovery, From His Snowplow Accident to His First Public Appearance

Evans, who starred alongside Renner as one of the original Avengers actors, commented on his costar's Instagram update on Jan. 3 and wrote, "Tough as nails. Love you buddy ❤️." The former Captain America star also wished Renner a happy birthday on his Instagram Story on Saturday, Jan. 7.

"Happy birthday to one of the toughest guys I know! Sending so much love your way," Evans wrote.