Rivals.com, Scout.com, ESPN, CBS Sports and 247Sports all give No. 1 rankings to Nkemdiche, the big defensive end from Grayson High School near Atlanta.
That's good news for Mississippi. Nkemdiche is expected to sign with the Rebels early this morning.
Louisiana State and Florida were believed to be Nkemdiche's other finalists. Nkemdiche's last visit was to LSU last weekend. The big edge for Ole Miss is Denzel Nkemdiche, Robert's older brother who led the Rebels in tackles as a redshirt freshman linebacker last season.
The family connection might be an insurmountable advantage, but the late decision to visit LSU added drama to today's announcement. Nkemdiche's updates on his final visit provided encouragement to LSU fans.
"LSU pushing man!!!! Getting hard now," Nkemdiche tweeted.
In another tweet, he said "LSU pulling out da facts!!!"
Nkemdiche made a public commitment to Clemson last year but then changed his mind, de-committing in November as Ole Miss again moved to the front of his list.