Landon Donovan said he briefly rooted against the United States in their friendly against Azerbaijan after finding out he wasn't included on the 23-man squad that would compete at the 2014 World Cup in Brazil.

The U.S.'s all-time leading World Cup scorer was famously left off manager Jurgen Klinsmann's roster for the World Cup setting off a firestorm of reaction across the country with many feeling that Donovan should have been included.

"I'll be completely honest, watching them play Azerbaijan, inside, part of me was thinking, I hope the game doesn't go very well today," said Donovan in an interview with the L.A. Times. "In my heart of hearts, I thought, if we get a 1-0 win and the team doesn't perform well, that would feel good."

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Donovan, who is working for ESPN as a soccer analyst during the World Cup, said he woke the next day -- after goals from Mix Diskerud and Aron Johansonn gave the U.S. an easy 2-0 win -- with a complete change of heart and felt "crappy" for not being fully supportive of his country and teammates.

"That's a bad way to live your life," said Donovan. "It doesn't help me, it doesn't help the team, it doesn't help the energy that the team needs."

The U.S. advanced out of the "Group of Death" ahead of Portugal and Ghana at this year's World Cup without Donovan and despite an injury to Jozy Altidore in the team's first match against the Ghanaians. Germany won the group. The U.S. face Belgium in the Round of 16 on Tuesday (4 p.m. ET, ESPN).