The two went their separate Big Ten ways, both now starters for Top 25 programs.
"It's amazing how better he's gotten since I first started playing with him," Egwu said.
A 7-0, 234-pound junior, Kaminsky is enjoying a breakout season. A year after averaging less than five points in 10 minutes a game, he's putting up nearly 14 points and six rebounds a game.
Egwu will be called on to defend his friend.
"He can stretch the floor. He can really shoot it, he's a really good shooter," Egwu, averaging 7.9 points and 5.3 rebounds, said. "He can put the ball on the floor. In high school I saw him play point. He's really skilled, a really skilled big man. We just have to contain him and force him to make shots."
Egwu says he and Kaminsky talk regularly, but that the buildup to these match-ups does lead to trash talk. Egwu hasn't beaten Wisconsin and his buddy Frank, a point that has been brought up this week.
"He's got me," Egwu said. "… I've got to figure out a way to get back.
"He's trying to beat me and I'm trying to beat him. After the game it's kind of like bragging rights."