That performance earned Cobb Southeastern Conference Freshman of the Week honors.
"Randall is mature well beyond his years," Kentucky coach Rich Brooks said. "He knows even if he is not the primary receiver to see how the defense reacts. Most guys run off in fog and blankness if they know the ball is not coming to him. He has a purpose for everything he does.
"I don't think you find many freshmen that have the maturity, dedication and leadership at that age like he does. A lot of them learn it and usually get it their junior and senior years. For a freshman to come in and be that savvy and mature is not usual."
Cobb has 16 catches for 157 yards, an average of 9.8 yards per reception, in the five games he's played. With Dicky Lyons and Derrick Locke out for the season with knee injuries, that makes Cobb UK's top receiver.
He also has rushed 14 times for 57 yards - 4.1 per carry - and completed nine of 15 passes for 136 yards and one score in his limited time at quarterback.
If that's not enough, he's also returned five punts for 44 yards and set up the winning score against Arkansas with a 14-yard return.
Need more? He also had the key block that started Alfonso Smith's 71-yard touchdown play last week.
Brooks says he intends to still use Cobb, who missed two games with a sprained ankle, sparingly at quarterback this Saturday at Florida.
"Cobb will still take some snaps at quarterback and play a bunch at receiver obviously. I think the change-up was pretty good (against Arkansas)," Brooks said. "We moved the ball on Cobb's second series at quarterback, and he did some good things, and then we stalled out and couldn't finish the drive.
"I think we will have him play a series or two at quarterback as we move forward, but obviously he will focus mostly at receiver."
Lyons doesn't think Cobb will be intimidated at Florida.
"Sometimes freshmen are more mature because they have no fear. They just go play," Lyons said.
Hartline also thinks Cobb will be fine against the Gators.
"Some guys just get open. Dicky was one of those guys, and so is Cobb," Hartline said. "Then if the ball is near him, he's going to catch it. Guys like Randall are just special no matter where he is playing."
That's the first impression Lyons had and he's seen nothing to change his mind.
"Cobb is a great athlete. He's as good as me, if not better, right now," Lyons said. "By the time he leaves here, he's really going to be one of those special, special players."
Locke out for the rest of season
LEXINGTON - Kentucky won't have its leading rusher and second leading receiver the rest of the season.
Sophomore running back Derrick Locke has torn both the anterior cruciate and medial collateral ligaments in his knee and will have season-ending surgery in the next week.
Kentucky's top receiver, Dicky Lyons, had injured his knee a week earlier and is set to have surgery Tuesday.
"Obviously, he is out for the year and that really hurts us," said Kentucky coach Rich Brooks.
Kentucky quarterback Mike Hartline says the Cats have no choice but to adjust to playing without two talented players. Lyons was hurt against South Carolina and Locke hurt his knee returning a kickoff in the first half of last week's win over Arkansas.
"Obviously you would rather have both those guys on the field with you," Hartline said. "But now we just have to have other guys play a more prominent role and move forward. There's nothing else we can do."
Defensive tackle Myron Pryor is "probably out" for Saturday's game at Florida because of a sprained ankle.
"He can barely get up on his toes. The high ankle sprain has stricken another player on our team," Brooks said.
Brooks said that will make a huge dent in UK's defensive front where Ricky Lumpkin had been rotating with starters Pryor and Corey Peters.
"Myron has been so productive and then you lose the rotation we had been using to keep both Peters and Myron fresh. We had been rotating Ricky and had a nice three-man rotation," Brooks said. "(Shane) McCord will be the next guy who has played some. He has done some good things, but he is not at the level of those three guys."
Linebacker Micah Johnson also remains doubtful for Saturday's game after re-injuring his ankle.
Brooks said offensive guard Stuart Hines did return and play five snaps against Arkansas with no problems and will be available at Florida. Starting offensive tackle Justin Jeffries could also possibly be back after missing two games with a knee injury.