Tonight at 9:45 p.m. ET the No. 1 overall seed in the 2015 NCAA Tournament, the Kentucky Wildcats, will look to stay unbeaten when they face the fifth-seeded West Virginia Mountaineers on CBS in a Sweet 16 battle that can be live streamed free online by clicking this link. Kentucky fans can catch the radio broadcast on WKYM 101.7,while West Virginia fans may do likewise on J 104.5 FM.

The Wildcats are double-digit favorites tonight vs. West Virginia, but Kentucky head coach John Calipari has no designs on an easy win. "You had better be ready," Calipari told his team about the Mountaineers' vaunted press defense.

"They're creating havoc, they're taking you out of your offense, they're creating opportunities for tough shots or turnovers," Calipari said. "They're playing very physical, they're coming in and letting you know it's going to be body to body."

Mountaineers guard Juwan Staten is confident their physicality will upset the smooth ride Kentucky's been on this year.

"We've been playing this way all year, we've had success against everybody no matter what style or what type of players they have. That's the only way we play and it's just up to us to make it work," Staten said.

The problem with pressing Kentucky is that they go 10-deep with quality players, so fatigue is not an issue. They also have a vast reserve of ball-handlers, so trapping one player frees up one or two more to receive the rock and work with mismatches.

Then, there's the ever-difficult task of scoring on the Wildcats on the other end with Karl-Anthony Towns and Willie Cauley-Stein patrolling the paint. Combined those two pillars turn away four shots per game, and anchor a defense that allows opponents the third-fewest points a night in the country.