The Thunder is close to finalizing an agreement with 7-foot center Nenad Krstic, according to multiple reports. The deal, which was first reported by DraftExpress.com, is worth nearly $16 million over the next three seasons. Thunder general manager Sam Presti declined to comment on the report Friday, and Krstic’s agent, Marc Cornstein, did not return multiple phone messages. Krstic, who is currently playing in Russia after leaving the NBA this summer, is a restricted free agent who last played with New Jersey. The Nets will have the right to match the Thunder’s offer within seven days of receiving it. New Jersey, however, is believed to be uninterested in matching. The Nets currently have 15 guaranteed contracts, a stable of quality young big men and are trying to clear as much salary cap space as possible in anticipation for the highly coveted LeBron James-led free agent class of 2010. Krstic, who was selected 24th overall in the 2002 draft, has career averages of 11.3 points, 5.7 rebounds, 1.1 assists and 0.7 blocks in four NBA seasons, all with the Nets.