Goldman Sachs chief executive Lloyd Blankfein testified at Rajaratnam's two month-long trial last year and could be called to the witness stand in Gupta's case along with other Goldman executives, according to court records. On Friday, the name of Goldman board member Claes Dahlback also came up in court and he could be asked to testify. After Rajaratnam was arrested in October 2009, Dahlback asked Gupta if he knew Rajaratnam, U.S. District Judge Jed Rakoff said, reading from a government report on the case. Gupta responded that Rajaratnam was a 'bad man' and further stated that Gupta lost money with Rajaratnam. A Goldman Sachs spokesman, David Wells, declined to comment. Government investigators recorded at least two discussions between Rajaratnam and Gupta.