TCU defensive end Stansly Maponga is leaving to enter the NFL Draft and will not play his senior season. Maponga announced the decision on his Twitter account Monday evening."So blessed and thankful to be in this position," Maponga said via Twitter. "First of all, thank you Lord, family, coaches, teammates, and fans ... I'll always have y'all in my heart."Maponga missed two games with a foot injury in 2012, and needed postseason surgery, coach Gary Patterson said a month ago.He does not have his degree, unlike Josh Boyce, who also elected to forgo his senior season.Maponga became an all-conference player in the Mountain West and Big 12 after attending Hebron High School in Carrollton.He led TCU with 13.5 tackles for loss, nine sacks and forced five fumbles as a sophomore in 2011. He earned All-Big 12 honors after finishing with 6.5 tackles for loss, including four sacks in 2012.Also, freshman linebacker A.J. Hilliard left TCU and, according to his Twitter account, has transferred to Texas A&M. -- Stefan StevensonShaq at conventionFormer NBA standout Shaquille O'Neal will address delegates as the keynote speaker during the NCAA Convention, which begins Wednesday in Grapevine. O'Neal will focus on the importance of education, stressing the value of his three college degrees.O'Neal, who played 19 seasons in the NBA after leaving LSU following his junior season, earned his bachelor's degree in general studies from LSU in 2000. -- Jimmy BurchUSC fires O'NeillKevin O'Neill was fired as USC basketball coach after 31/2 years during which he failed to turn around a program weighed down by NCAA issues that preceded his arrival and a string of injuries. O'Neill had a 48-65 record, including 7-10 this season after going 6-26 last year.