Seven-year-old Matthew Pietrzyk was born with a rare genetic disorder that requires him to have a kidney transplant. But like so many transplant hopefuls, finding a matching kidney has been an uphill battle.
Fortunately for Matthew, 5-year-old Jack Scoble is around to lend support.
Last week, Jack, who is from Queensland Australia, made a sweet and heartwarming video and posted it to a Facebook page created for Matthew, reports the Leicester Mercury.
"My mum and dad have told me that you were waiting to find your new kidney," Scoble says in the video above. "I want to tell you to hang in there buddy."
He's speaking from experience, having had a kidney transplant only a year ago.
"I got my new kidney after a whole year and, even though I am little, I remember how hard it was living on the machine and having injections every day until my new kidney came. But keep your fight and your chin up, Matthew."