Nieves was 5-of-11 shooting, including 3 of 6 from 3-point range, while Baker was 6-of-13 shooting and 5 of 10 from deep. LeAntwan Luckett added 14 points.
The Braves (5-14, 3-1) made 51.8 percent (29 of 56) of their shots, including 10 of 21 from 3-point range. Alcorn State has won consecutive games for the first time this year.
Terry Rose paced Grambling State (0-13, 0-4) with 19 points. The Tigers shot just 28.8 percent (17 of 59), including 22.6 percent (7 of 31) in the first half.
Grambling State went 0 for 7 from 3-point range before halftime, when it trailed 38-15, but hit 5 of 7 after the break. Rose hit four of those treys in six attempts.
Guard Naz Mitrou-Long, whose 2015-16 season ended in December due to hip problems, has been granted a hardship waiver for the coming season, Iowa State said.
As the Sooners look to life without superstar Buddy Hield and his sidekicks, it's clear their unseasoned players will need to grow up fast.
The Central Intercollegiate Athletic Association says it won't move its headquarters, its basketball tournament or other conference championships from North Carolina, despite