When a Tokay High School basketball player stood at the free-throw line last Friday night in a game against St. Mary's, he was greeted by a not-so-friendly chant."USA, USA!" the Stockton St. Mary's High School fans yelled.Watch report -- 'USA' chant at Tokay-St. Mary's game 'was not a patriotic cheer'"It was not a patriotic cheer," Tokay High School Principal Erik Sandstrom said. "It was being done because one player had (the) ball in his hands."The player is of Pakistani descent."All of a sudden, you (heard) racial slurs come out," Tokay student Diego Hernandez said. "It offended everyone."After the game, the player posted on Twitter, "That's the coldest thing I ever witnessed."Then, his classmates joined the cause, tweeting about how the hurtful chanting wasn't cool -- and they received hundreds of responses."They were just chanting it to intimidate (him) and get in his head -- but going to that level is too much," Hernandez said.Sandstrom said Tokay's teachers have talked to their students about sportsmanship. He hopes the other school does the same."It's disappointing that happened and (the crowd) targeted a student," the principal told KCRA 3.The St. Mary's principal sent in a statement, saying, "We have taken definite steps to address the hurt that was caused by a chant used by our students. We will use this incident as an opportunity for our students to learn more deeply what it means to respect and appreciate others."St. Mary's also said it has issued a sincere apology to the targeted student.The California Inner-Scholastic Federation, which governs high school athletics in the state, said an official complaint wasn't filed. The schools are taking care of the matter on their own.