Former Celtics coach Doc Rivers has reportedly agreed to become Bucks head coach

Prior to Game 1 at TD Garden, 76ers coach Doc Rivers took the time to honor late Celtics vice president of public relations Heather Walker.Former Celtics coach Doc Rivers has agreed to become head coach of the Milwaukee Bucks, according to ESPN’s Adrian Wojnarowski.

The Bucks fired Adrian Griffin on Tuesday. Griffin was a little more than halfway through his first season.

The Bucks are tied for the second-best record in the NBA behind the Celtics. But, sources told Wojnarowski that the organization felt it could find an upgrade that would give them a better shot at winning the championship.

Rivers, who played college basketball in Milwaukee at Marquette, had been serving as an NBA analyst for…