Justin Morales, better known on social media as ItsJSTN or JSTN, is an American professional gamer best known for his Rocket League gameplay. Justin started playing Rocket League at a young age and at first, his parents were skeptical about how much time he spent playing the game. The gamer first signed with Team Out of Style in August 2017 to start his professional Rocket League career.

Justin joined the eSports organization NRG eSports in 2018 to play on their Rocket League team alongside GarrettG and SquishyMuffinz. Justin is a two-time LAN Champion and RLCS Season 8 World Champion. In addition, he won first place at the Rocket League Summit. He was the youngest player at the World Championship at just 15 years old.