The 6-foot-5, 215-pound Rumph, from Cayce, S.C., also considered Mississippi State and Texas Tech among others. He will begin classes next month and practice in the spring, joining a Georgia receiving corps that is losing seniors Tavarres King and Marlon Brown.
"He's very fast," Richt said. "He's an explosive athlete."
Rumph is rated as a four-star prospect by Scout.com. He played quarterback his senior season of high school.
He had 45 catches for 569 yards and three touchdowns this past season and 42 catches for 778 yards and four touchdowns as a freshman.
Rumph has three years of eligibility remaining to play two. He is one of five receiver commitments in this year's Georgia class
Georgia on Wednesday announced the signing of defensive lineman Chris Mayes from Mississippi Gulf Coast Community College.
The 6-foot-3, 335-pound Mayes, who signed with Georgia in 2011 out of Spalding High in Griffin but did not qualify, will have three years to play three seasons after redshirting this season.
"The guy gets spring ball and three seasons, that's really about as good as it gets," Richt said. "Of course, he's a big nose guard. Well, D-lineman. I don't know if he'll end up being a nose or not. He can play inside. He's about a 330 pounder. He's a very athletic kid, a guy we really liked out of high school. Just glad that he's with us now."
OL Austin Long breaks hand
Austin Long's chances of breaking into Georgia's starting lineup for the bowl game are probably over.
The junior offensive tackle underwent outpatient surgery on Thursday at St. Mary's Hospital for a broken right hand after sustaining the injury Wednesday in a blocking drill.
"It's something that actually won't even count him out in the game," Richt said. "You could club a guy and protect what's been done surgically so there's even a chance he could even play in the game, but we don't think it'll affect spring ball at all."
Tight end Jay Rome (hip flexor) also missed practice Thursday.
"I don't know how bad Jay's (injury) is," Richt said.
This and that
Defensive end Abry Jones looked good running in practice on Thursday as he tries to return following ankle surgery.
"It's definitely a possibility (he plays)," Richt said. "I think it's more of a probability now just watching him run today. I think today gave him more confidence. He's not in the best condition right this minute. I think he ran about as fast as he could and felt good."
Tight end Arthur Lynch is the second recipient of the "G.A.T.A" award—Gracious Attitude Towards Answering--voted on by beat writers who cover the team. The award is now permanently named after linebacker Christian Robinson, the inaugural winner. "Can the head coach ever get the award?" Richt asked. "When I avoid questions, I lose the award."
Georgia moved up practice a couple of hours on Thursday to avoid the rain—but still got heavy rain in the first 10 minutes before it stopped. There were a couple of "mild fights at the end of practice, which tends to liven things up," Richt said. Georgia wraps up practices on campus this morning.
Richt said he would wait until Georgia arrives in Orlando on Dec. 26 to address any academic casualties.