The 6-foot-5 Mayo, who played one season at Southern California, is one of the "four or five" players the Timberwolves are considering with the No. 3 pick in Thursday's NBA draft assuming Derrick Rose and Michael Beasley are taken with the first two.
General manager Jim Stack, in a conference call with Minnesota reporters, said the Wolves contingent spent about an hour interviewing Mayo afterward. Much of the discussion centered on improper benefits Mayo allegedly received through an agent while playing at USC.
"We wanted to pin him down on some things," Stack said. "I'm really impressed with the fact that he was very much a standup person. He knows he's got to be accountable for whatever happens in his life. He wasn't looking to make excuses for anything. Regarding the allegations, he basically told us that he didn't do anything wrong. I tended to buy into what he was saying.
"At the end of the day I think it really taught him some lessons about being careful with his inner circle and understanding where people are coming from and that they might have different agendas."
Stack said he thought Mayo, who will turn 21 in November, was more mature than most of the other prospects. The Wolves see him as capable of playing both guard spots, like Randy Foye, their first-round draft pick in 2006.
The Wolves will host three more prospects at Target Center on Monday: Arizona guard Jerryd Bayless, Indiana guard Eric Gordon and Oklahoma center Longar Longar. Bayless and Gordon are considered top six picks by most analysts.