Sounds like some Ole Miss fans posted some shit on the MSU boards to get them riled up.
IF they were suspended for grades it would not be for one game, it would be for the entire season as they would likely be in violation of the academic progress statue(see below). (Unless they did not go to class and Coach Mullen is suspending them one game to send a message.) IF this was true it would have been reported yesterday when they team got on the bus, as these players would not be part of the travel roster.
"The student-athlete must complete an average of 12 semester hours during each of the previous academic terms in academic years in which the student-athlete has been enrolled full-time, or
b. The student-athlete must complete 24 semester hours of academic credit since the beginning of the previous fall term. If a student-athlete passes 18 or more credits during the traditional academic year, he/she may use up to six semester hours from the summer terms to count toward the 24 required hours."
I would have expected this information to have been out way before now.