Scottie Barnes in 7 games against the Cleveland Cavaliers: 24.1 points, 6.1 rebounds, 8.6 assists | 1.1 Steals | 1.7 Blocks | On 50.9⁄38.1⁄79.6 splits
Despite not advancing to the 2nd round, Scottie Barnes was the best player in the series - and on both ends at that. He had a true-shooting 60.5% throughout the 7 game series despite the lack of help from his co-star in the games he played and the lack of spacing with Immanuel Quickley out for the entire series (Him being in would probably have helped with the turnovers in Games 1, 2 and 7).
He even got to the line consistently with an average of 7.7 free throw attempts per game.