Brooklyn Nets guard Ben Simmons has filed a grievance to challenge the nearly $20 million of salary withheld to him by the Philadelphia 76ers this season, setting up a potentially significant showdown, sources told ESPN on Saturday.
The grievance -- which will now go to an arbitration process -- could have larger league implications amid future issues of mental health matters and NBA contracts.
Philadelphia has repeatedly insisted that Simmons was in breach of his contract under the collective bargaining agreement between the NBA and National Basketball Players Association and had the right to recoup the money advanced to him before the season.