NEW YORK -- The man charged with stalking tennis star Serena Williams was transferred from a jail in Queens to Rikers Island, where he was held on $3,000 bail Sunday.

Albrecht Stromeyer, a 34-year-old German man who was arrested early Saturday morning at the U.S. Open, will remain in custody until his court appearance Thursday unless he posts bail, said corrections department spokesman Tom Antenen.

Stromeyer arrested and charged with two counts of stalking early Saturday after a police officer spotted him watching Williams play a match against Nathalie Dechy. Officer Michael Esposito recognized Stromeyer from a photo given to police by Williams' manager.

In a written statement, Stromeyer admitted he had been following Williams around the world. He was arrested outside the gates of Wimbledon on July 3 after scuffling with police. He told the officers then that he loved Williams and would never hurt her.

Stromeyer, who lives with his parents in Frankfurt and whose mother is a psychiatrist, has allegedly tried to contact Williams by phone and e-mail several times this year.

He faces a $1,000 fine and up to a year in prison if convicted of the stalking charges.

It was unclear on Sunday whether Stromeyer would be able to post bail.

"I don't have any indication that he has the resources or that he doesn't," said Pat Clark, a spokesman for the Queens district attorney's office.

Clark said that Stromeyer had $207 when he was arrested.

Queens District Attorney Richard A. Brown had requested $50,000 bail for Stromeyer when he was arraigned at Queens Criminal Court Saturday night, Clark said. Judge Lenore Gerald set bail at $3,000.

"The judge felt that this amount of money was the appropriate amount that reflects the nature of the charge,'' Clark said.

At the request of prosecutors, Gerald granted an order of protection that forbids Stromeyer from coming near Williams, the Women's Tennis Association and the U.S. Tennis Association.

Last May, Stromeyer was ordered to leave Italy after police at the Italian Open received word of his history of harassing Williams. Two months earlier, Stromeyer walked into an Arizona hotel-resort where Williams was playing and asked to see her. When he was turned down, Stromeyer began undressing in front of the desk clerk.

He was charged with disorderly conduct and indecent exposure.

Williams' mother, Oracene, also reported seeing Stromeyer at a Berlin tournament in May and at the French Open in June.