A day after criticizing a referee for issuing yellow cards to two of her teammates in Monday's World Cup win over Colombia, U.S. captain
"I don't know if they were yellows," Wambach told reporters Monday. "It seemed like she was purposefully giving those to the players she knew were sitting on yellows. I don't know if it was just a psychological thing, who knows?"
On Tuesday, she struck a more conciliatory tone during an interview with Fox Sports, and apologized.
"I'm not in the referee's head, and that's something that I definitely take ownership of and apologize for, because I don't know what the referee is thinking," Wambach said. "She is doing the very best job she can."