There have been moments when RJ Johnson will make a great play to swat the ball away from a receiver. And other moments when Teon Parks will snag an interception or break up a pass.

Throughout preseason camp, both have made their case to start, which makes it difficult on Colorado cornerbacks coach Kevin Mathis to figure out which one will be in the lineup when the Buffaloes host Georgia Tech on Aug. 29 (6 p.m., ESPN) at Folsom Field.

“It’s been tough for us,” Mathis said Thursday after the Buffaloes’ practice. “They’ve both been playing really well, and they’re competing, man. But, I’m confident with each of them.

“Whichever one of them we put out on the field (against Georgia Tech), man, is gonna be going out there and competing.”

Junior DJ McKinney is already set at one cornerback s

See Full Page