On Wednesday Renner posted a picture of the message, sent by his nephew Auggie.
“I am very lucky because my uncle is Hawkeye (one of the Avengers). I am also very lucky because my uncle is alive from his accident,” the note read.
“Love my little man. Bless you Auggie,” the actor captioned the photo.
The actor has kept fans updated with his recovery process so far, saying he would do “whatever it takes” to get back to full strength.
He recently announced his new Disney+ series Rennervations, due to air on April 12, which will see him use custom-made vehicles to help struggling communities.
Jeremy Renner shares heartfelt note from nephew amid ongoing recovery