The Duke Blue Devils (4) and Wisconsin Badgers (2) are playing Wednesday night in the first top-five matchup of the college basketball season.

In it, viewers will be treated to a classic clash of offense versus defense and a head-to-head with two of the game's best players, who play the same position. Both undefeated at 7-0, Duke has been scoring about 90 points a game while Wisconsin is allowing an average of 50 points per game.

CLICK HERE to listen to the game live via TuneIn. Tipoff is scheduled for 9:30 p.m. in Madison, Wis.

A sharp shooting seven-foot center, Wisconsin's Frank Kaminsky is nearly not guardable, but he has never encountered Jahlil Okafor. Their matchup on both ends of the court will be the highlight of this heavyweight bout.

"We look at is as Wisconsin vs. Duke. It might happen that they do get matched up on a majority of plays, but at the end of the day it's our five against their five," Badgers forward Duje Dukan told reporters of Okafor, according to the Associated Press.

The two players are both leading their team in scoring with about 16 to 17 points per game, but their playing styles are completely different. Like Dirk Nowitzki in the NBA, Kaminsky can score from all over the court and defenders will struggle to get in his face when he goes for a jumper.

Though Kaminsky is listed an inch taller than Okafor, the latter outweighs the former 270 pounds to 235. Duke is 13-2 in the history of the ACC/Big Ten Challenge, but this Wisconsin team at home figures to be as tough a challenge as they will see all season.