The phrase above means: “The Nets Are Mine!” in Russian. (Well, the Babel Fish translator claims it does, anyway.) Mikhail Prokhorov, star of Mikhail Prokhorov Theater, signed formal papers Tuesday night to purchase the New Jersey Nets. The NBA Board Of Governors has to approve him in January 2010 (and they will), and he is expected to obtain control of the land around the corner of Flatbush and Atlantic avenues in March. Then: Look out.