The Billikens (2-0) made just 2 of 10 3-pointers and shot 41 percent (9 of 22) to lead 29-26 at the half. In the second half they made all four 3-pointers and shot 73 percent (16 of 22) to outscore the Hawks (1-2) 45-24.
Saint Louis had a 37-25 rebounding advantage with French grabbing eight. The Billikens had a 35-10 advantage on points in the paint and 11-0 on second-chance points.
Tshiebwe's relationship with Sagaba Konate helped West Virginia land a player who had his pick of high-major offers.
SEC Network's Marcus Spears joins Rocky Top Tip-Off to be a special guest in judging Tennessee's dunk contest.
Oscar Tshiebwe, a 6-foot-9 center out of Pennsylvania who averaged 21.3 points and 11.7 rebounds on the Adidas Gauntlet circuit, chose WVU over Kentucky, Baylor and Illinois.