Lopez, the Nets' leading scorer, broke his right foot in a preseason game against the Knicks on Wednesday and was scheduled to undergo surgery on Friday. He is expected to be sidelined for at least a month.

The injury could have an impact beyond Lopez's playing status. He had been rumored to be part of a trade package the Nets were hoping to put together to lure All-Star Dwight Howard from the Orlando Magic.

Okur, a 2007 All-Star from Turkey, has career averages of 13.7 points and 7.1 rebounds, but played just 13 games with the Jazz last season because of Achilles and back injuries.

"Mehmet will give us added scoring and size," Nets General Manager Billy King said in a statement. "His ability to shoot the three will help space the floor."

Lopez led the Nets with 20.4 points a game and averaged 6.0 rebounds last season.

The fourth-year center will miss a regular-season game for the first time in his career. He had played in 246 consecutive games, the fourth-longest streak in the NBA.