The 19-year-old has signed a lengthy six-year contract with Alan Pardew's side after impressing in a trial at the club in June.

He will join his new team-mates later this week when they return from a pre-season training camp in Portugal.

Left-sided Good will add depth to Newcastle's defensive options heading into the new English Premier League campaign.

After signing a professional deal with Heart in February 2011, Good made 24 A-League appearances in the 2011-12 season and impressed with his composure in defence.