10:16am: The Thunder confirmed the signing via press release.
7:16am: The Thunder and Derek Fisher have reached an agreement on a contract for the remainder of the 2012/13 season, reports Adrian Wojnarowski of Yahoo! Sports. Dave McMenamin and Marc Stein of ESPN.com first reported that the two sides were closing in on a deal.
Fisher, 38, played 20 regular-season games and 20 postseason contests for the Thunder last year after being traded to and bought out by the Rockets. It was suggested that the veteran point guard's brief stint with the Mavericks earlier this season was designed to ensure he remained an "active' player, keeping his spot as president of the players' union. But it appears Fisher and the Thunder feel he has at least one more playoff run left in him, despite early-season knee issues.
The longtime Laker will take over the backup point guard spot that opened up when Oklahoma City traded Eric Maynor to the Trail Blazers last week. A corresponding roster move won't be necessary, since the Thunder had been carrying 14 players, leaving one open spot.
Neither the Yahoo! report nor the ESPN report indicated how much Fisher's deal with OKC will be worth. The Thunder still have a portion of their mid-level exception and bi-annual exception available, but a minimum-salary deal may be more likely. Fisher's deal is expected to be finalized later today.