Rookie guard Cole Anthony had 13 points and seven rebounds as Orlando snapped its six-game losing streak.
The Wizards have not played a game since Jan. 11 as the team deals with a COVID-19 outbreak within the organization.
Fuller was among the sports figures to participate in Wednesday's inauguration ceremony, along with Marlins general manager Kim Ng and basketball legend Kareem Abdul-Jabbar.
Wednesday's game marked the first time all three stars played together for the Nets, but it didn't go as planned.
Bauer won the NL Cy Young award last season, finishing the year with a 1.73 ERA.
Williamson's case concerned a contract he terminated with a marketing agent who was seeking $100 million in damages from the former Duke star.
Hayes, the No. 7 pick in last year's NBA Draft, started all seven games he played for the Pistons, averaging 4.6 points and 3.6 assists on 27.7% shooting.