Mark Mastrov met with the Maloofs recently, and two league sources speaking on condition of anonymity said he has made a formal offer to purchase the Sacramento Kings.
Mastrov is the founder of 24-Hour Fitness and finished second in the bidding for the Golden State Warriors.
"Definitely, there've been conversations," Mastrov said from his northern California office. "Definitely, there's interest in acquiring the team and keeping it in Sacramento."
Mastrov would purchase the Kings to keep them in Sacramento.