2017-18: Sumner was selected by the New Orleans Pelicans with the 52nd overall pick in the 2017 NBA Draft before the Pacers acquired Sumner in a draft night trade. He was signed to a two-way contract on July 5...After rehabilitating a torn ACL in his left knee suffered during his final season in college in 2016-17, Sumner made his professional debut for the Fort Wayne Mad Ants on Jan. 19 against the Sioux Falls Skyforce. He appeared in 14 total games and made seven starts in the G League and averaged 7.2 points, 2.3 rebounds, 2.3 assists and 1.1 steals over 17 minutes per game. He came off the bench to score 18 points on 7-for-11 shooting to go with seven rebounds and two blocks in Fort Wayne’s lone playoff game against Erie, 4/3. Sumner made his NBA debut in the Pacers’ regular season finale against Charlotte, 4/10, and finished with two points and one rebound in the final two minutes.
2018-19: He began his second NBA season as a two-way player before he was signed to a contract on Feb. 11. He played 23 games and made two starts for the Pacers and averaged 2.9 points over 9.2 minutes per game. He set a career high with 22 points as he shot 5-for-14 from the field, 3-for-7 from 3-point range and 9-for-11 from the free throw line at Atlanta, 4/10. He sank three free throws with 0.3 seconds remaining to lift Indiana to a 135-134 victory. Sumner scored in double figures for the first time in his NBA career with 17 points as he shot 7-for-11 from the field and 3-for-4 from 3-point range in the win over the Lakers, 2/5. He had scored 21 points and made one 3-pointer all season entering that game. He made his first NBA start against the Warriors, 1/28, and finished with two points, three rebounds, two steals and two blocks in 28 minutes. He missed one game (March 5) with a bruised left knee. Sumner made 26 starts in the NBA G League while on assignment with the Fort Wayne Mad Ants. He averaged 22.1 points, 2.7 rebounds, 4.0 assists and 1.6 steals per game. Ranked 11th in the G League in scoring average. Sumner shot 47.1 percent from the field, 36.0 percent from 3-point range and 74.8 percent from the free throw line in G League play.
In over two-plus seasons at Xavier from 2014-17, Sumner averaged 11.1 points, 3.4 rebounds, 3.7 assists and 1.1 steals over 60 games and 49 starts...Shot 42.9 percent from the field, 28.5 percent from three-point range and 73.0 percent from three-point range over his career.
2014-15: Sumner appeared in six games off the bench and averaged 1.3 points and 1.0 assist per game before being redshirted for medical reasons. He was named to the 2014-15 Big East All-Academic Team.
2015-16: He was named to the Freshman All-American Team (collegeinsider.com) after averaging 11.0 points, 3.4 rebounds and 3.6 assists per game over 31 games and 29 starts as a redshirt freshman. He shot 39.7 percent from the field, 30.1 percent from three-point range and 72.7 percent from the foul line. Sumner earned All-Big East Freshman Team and Second Team All-Big East honors. Scoring in double figures in 22 games, including 10 of the final 13 games of the season. He was named Big East Freshman of the Week five times.
2016-17: He averaged 13.7 points, 4.0 rebounds and 4.6 assists per game over 21 games and 20 starts. Sumner shot 47.9 percent from the field and 73.5 percent from the free throw line. He scored in double figures in 19 of his 21 games played, including four outings of 20 or more points, before suffering a season-ending knee injury on Jan. 29. He scored a career-high 28 points to go with eight rebounds and six assists in Xavier’s win at Georgetown, 12/31. Sumner was named to the Big East’s Weekly Honor Roll twice.
He was born to parents Ernest Sumner and Felicia Sumner on Dec. 31, 1995 in Detroit. He has two siblings, Shanequa and Ernest. He studied computer science at Xavier University. Sumner won one state title, two regional championships and three district championships during his career, while also reaching the 1,000-Point Club in high school at Detroit Country Day.