Start > Run > Type : %appdata%, then find 2K SportsNBA 2K13Saves , overwrite all the files.
for XP users: C:Documents and Settings[your user name]Application Data2K SportsNBA 2K13Saves
for Vista or Win 7 users: C:Users[your user name]AppDataRoaming2K SportsNBA 2K13Saves
Then go to NBA 2K13 and load it..
NBA 2K13 was released ofor the Xbox 360, PlayStation Portable, PlayStation 3, Microsoft Windows and Wii. Kevin Durant of the Oklahoma City Thunder, Blake Griffin of the Los Angeles Clippers and Derrick Rose of the Chicago Bulls are the cover athletes. NBA 2K13 is the successor to NBA 2K12 in the NBA 2K series.
Download Official NBA 2K13 Roster & Online Data(2012.10.31). This is a mod for NBA 2K13 video game.
IMPORTANT : This mod was created to be used only with a legal copy of the game.