CoSport also does ticket sales in many other countries and is the official U.S. ticket agent for FIFA Soccer.

FORBES: 2014 Winter Olympic Games Alert: Tickets On Sale Today For Sochi!

Arsene Wenger had called it "unacceptable behavior" -- but Chelsea counterpart Jose Mourinho made a novel defense for his agent provocateur Costa, likening the soccer star to a rugby player after yet another victory over Arsenal.

CNN: Story highlights

"Jurgen is trying to raise the bar for U.S. Soccer, but Clint has met the challenge at every level, " said Lyle Yorks, Dempsey's agent.

WSJ: For Jurgen Klinsmann, Mediocrity Will Not Be Tolerated��U.S. Men's National Soccer Team