Nolin, who was also fined an undisclosed amount, initially planned to appeal the suspension before agreeing to start serving it Friday night.
The league suspended Nationals manager Dave Martinez one game and fined him an undisclosed amount. Martinez served the suspension in Friday night’s game in Pittsburgh. Bench coach Tim Bogar will manage the team in place of Martinez.
Nolin was ejected in the first inning on Wednesday after throwing behind Freeman and then hitting him in what became a 4-2 Nationals victory. Nolin plunked Freeman a day after Atlanta closer Will Smith hit Washington star Juan Soto.