Tyler Herro is a rookie out of Kentucky who has made a big impact this season, even earning second-team All-Rookie honors.

On Wednesday night in the Eastern Conference Finals against the Boston Celtics, Herro didn’t crack the starting lineup, but he still made his presence felt.

In 36 minutes off the bench, Herro — who is only 20 years old — had a historic performance, pouring in 37 points on 14-of-21 shooting while also grabbing 6 rebounds and dishing out 3 assists. His 37-point performance was the most from a 20-year-old player or younger since Magic Johnson’s 42:

The Heat earned a 112-109 victory over the Celtics, taking a commanding 3-1 lead in the Eastern Conference Finals.

Kentucky coach John Calipari took note of Herro’s big performance, sending out this tweet:

Game 5 is on Friday night. Can Herro help the Heat eliminate the Celtics and move on to the NBA Finals?