Both endear themselves to audiences with their on-court antics, both go by funny nicknames (Mo and Googa) and both are natives of Brazil.
But while Kuerten rakes in the big bucks on the pro circuit, Petrone is toiling in the college ranks as the No. 1 singles seed for the North Carolina men's tennis team.
This weekend, Petrone and several of his Tar Heels teammates in Intercollegiate Tennis Association's Regional/Top of the Hill tournament.
Saturday, Petrone was the only Tar Heel left, and he was bounced out of the tournament at Cone-Kenfield Tennis Center, losing 6-4, 6-4 to Florida State's Romain Jurd.
Jurd later fell to Roger Anderson, the eventual tournament's winner.
After Jurd broke Petrone's serve, the third-seeded Petrone showcased some of his Kuerten-style behavior, kicking and heading some of the tennis balls up into the crowd, which was cheering "Go Mo."
"The crowd cheering me up definitely helped me," Petrone said. "If it were not for the crowd, I would've been out of there much faster."
Petrone fell behind 4-1 in the first set but battled back to make it 5-4.
But when Petrone had a chance to break Jurd's serve, he missed an easy volley for the break.