Arkansas offensive coordinator Paul Petrino says he wasn't pleased with Thursday's workout by the Razorbacks.

"We need to come out with more intensity and we need more leadership," Petrino said. "Guys need to get after it better and bring more energy, so it wasn't good enough. We need to be a lot better."

Petrino said that, as coach of the team's receivers, coach, he tells his group how important it is to be at your best every practice.

"I think at the receiver position sometimes it's survival of the fittest," Petrino said. "If you go down, someone else steps up and has a day, then you've lost your job, so I always tell them every day that it's survival of the fittest and if you're not tough enough to be out there then you're not going to play."

Arkansas opens its season Aug. 30 at home against Western Illinois.

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