The WNBA star and two-time Olympic gold medalist Brittney Griner is to return to court on Tuesday, a month after the beginning of the trial, in which she could face 10 years in prison if convicted of cannabis possession. As the trial progressed, her case moved from the small Moscow courtroom to the highest diplomatic levels as the Biden Administration faced rising calls for action to win her release. In an extraordinary move, Secretary of State Antony Blinken spoke to Russian counterpart Sergey Lavrov last week, urging him to accept a deal under which Griner and Paul Whelan, an American impris…