Grant Williams supports Pulisic, USMNT with pregame outfit originally appeared on NBC Sports Boston

Boston Celtics forward Grant Williams is all in on the United States men's national soccer team as they prepare for the knockout stage of the 2022 World Cup.

Williams showed up to Wednesday night's game vs. the Miami Heat donning a Chelsea F.C. Christian Pulisic jersey. Pulisic scored the lone goal in USA's 1-0 victory over Iran on Tuesday.

Pulisic exited the game with what was later diagnosed as a pelvic contusion, but he was the hero who helped the USMNT advance to the Round of 16. He is considered day-to-day.

It looks like Williams will be one of many Americans watching when the USA takes on the Netherlands on Saturday. As for the Celtics, they'll look to extend their win streak to five games as they welcome the Miami Heat to TD Garden.