And that's when he gave the Cardinals a verbal commitment.
The 6-foot-9, 240-pound Agau had a previous relationship with Richardson and said the Cardinals have been involved in his recruiting process since Richardson arrived. He landed an offer from U of L in July.
"We have a really good relationship and talk almost every day," Agau said. "I have talked to coach Pitino a few times and he was waiting to come and see me play in July. He came and then I called him and he offered me a scholarship.
"He really bragged about my game a lot. He said I did a great job."
Agau, a native of Sudan, picked the Cardinals over Georgetown and others.
Agau is not ranked in the Scout.com top 100 but had a stellar summer with his Team Nebraska Express and at individual events, including NBA top 100 camp.
He said in a recent interview that Pitino told him not to worry about rankings.
"He said of all the players in the top 10 or 15 of post players, that I pass and dribble better than all of them," Agau said. "And I was like, ‘I wish the world knew that.' And coach Pitino was like, ‘I will make it known'."
Agau, originally from Sudan, helped Omaha Central to the Class A state title last season. He had a triple-double 16 points, 13 rebounds and 14 blocked shots during the state championship final. In three state championships, Agau had 30 blocks.
The school has won three straight state titles.