Two former Goldman Sachs colleagues will face off in a Brooklyn courtroom on Wednesday in a trial over the looting of hundreds of millions of dollars from Malaysia's 1MDB sovereign wealth fund, one of the biggest scandals in Wall Street history.

Roger Ng, Goldman's former head of investment banking in Malaysia, is charged with conspiring to launder money and to violate an anti-bribery law. Prosecutors said in opening statements at his trial on Monday in Brooklyn federal court that Ng, 49, received millions in kickbacks for helping embezzle funds from 1MDB.

On Wednesday...