Sixers’ Mac McClung, now the NBA dunk champ, wasn’t an unknown

Tyrese Maxey added 23 points and Montrez Harrell scored 20 for the Sixers, who have won four of five.

The Wizards withstood a 48-point effort by Joel Embiid and a 26-point, 13-assist performance by James Harden.

A person familiar with the situation said Harden chose not to exercise his $47.4 million option for next season and will become a free agent — but with no designs on leaving.