Sindarius has appeared in 139 games (18 starts) for New Orleans and Los Angeles Clippers, holding career averages of 2.6 points, 1.4 rebounds and 0.6 assists in 10.8 minutes. During the 2019-20 NBA season, he appeared in two games off the bench for New Orleans, averaging 8.0 points, 2.0 rebounds, and 2.0 assists in 17.5 minutes per contest while also appearing in 40 games (26 starts) for the Rio Grande Valley Vipers of the NBA G League, averaging 9.2 points, 5.3 rebounds, and 4.5 assists in 28.9 minutes per game. He was drafted in the second round by the Milwaukee Bucks with the 48th pick in the 2017 NBA Draft on June 22.
Thornwell started all 132 games in four seasons at South Carolina, averaging 14.7 points, 5.2 rebounds, and 3.0 assists. As a senior, he was named Preseason All-SEC First Team (Coaches), 2x SEC Player of the Week, 2017 SEC Player of the Year (Coaches), USBWA All-District III, 2017 East Regional Most Outstanding Player, First Team All-American (CBSSports.com). He averaged career highs in nearly every statistical category, including points (21.4), rebounds (7.1) and steals (2.1) per game, along with field goal percentage (44.4) and free throw percentage (83.0) while leading the SEC in scoring in conference games at 22.1 points per game; also named All-SEC First Team and to the All-Defensive Team by the coaches. Sindarius averaged an SEC high 21.4 points and 2.1 steals per game in postseason play and concluded his career in the Garnet and Black third in scoring with 1,941 points, first in games started (132), tied for fourth in games played (132), third in free throws (570), fourth in steals (199), 10th in rebounds (684) and ninth in assists (390). Thornwell’s 663 points scored during senior season rank fourth all-time in South Carolina history for a single season. In five NCAA Tournament contests, he helped fuel South Carolina’s Final Four run, averaging 23.6 points and 7.0 rebounds per game, while collecting East Region Most Outstanding Player honors along the way
Sindarius is the son of Greg Wade and Sharicka Thornwell and he also has one brother, Quantavious and one sister, Quasheka. Sindarius competed with the USA East Coast basketball team in Estonia during the summer of 2014. If he could spend a day with anyone, present or historical, it would be his great grandmother. His best advice to young people is to “take your school work serious” and the best advice he has ever received is “take advantage of every opportunity”.