Toronto police have issued arrest warrants for two Brazilian soccer players who competed in the Pan Am Games on charges related to the sexual assault of a woman in July.

Police identified Andrey da Silva Ventura, 22, and Lucas Domingues Piazon, 21, as members of the Brazilian Pan Am soccer team.

Piazon lives in England and plays for the Reading Football Club in the U.K. on loan from the Chelsea Football Club. Ventura is a goalkeeper for the Botafogo-SP club in Brazil.

The alleged incident happened July 25 after two men accompanied a 21-year-old woman and a friend back to one of the women’s homes from a night club.

The men allegedly entered the woman’s bedroom after she had gone to sleep and then assaulted her. She woke up and they fled.

Both men returned to Brazil on July 27.

Sex Crimes Insp. Joanna Beaven-Desjardins provided details at a morning news conference Thursday.

“You could say it’s frustrating. It would be good for the victim and themselves to cooperate,” said Beaven-Desjardins.

Ventura faces a Canada-wide warrant and police said they will begin a process to bring him back to Toronto to face charges. Canada has no extradition treaty with Brazil, she said.

Piazon is facing an Ontario-wide warrant, so police cannot go through “the extradition process,” Beaven-Desjardins said, “but when he comes to Ontario, he is arrestable.”

According to Beaven-Desjardins, the Crown Attorney’s Office made the decision regarding the different warrants. Police were not able to explain the reason.

This is the second sex crime-related investigation involving Brazilian Pan Am athletes. In July, police issued an arrest warranted for the substitute goalkeeper of the silver-medal Brazilian water polo team. Thye Mattos Ventura Bezerra, 27, is wanted on a warrant in connection with a sexual assault of a 22-year-old woman in her bedroom. Bezerra had already left the country when the warrant was issued.

The Toronto 2015 Pan Am Games, held in venues across the GTA from July 10 to 26, brought 6,000 athletes from 41 countries to the city.