After talks in a blockbuster deal fell apart over draft pick compensation, Doc Rivers is unsure about returning to the Boston Celtics as coach, league sources told Yahoo! Sports on Tuesday.

Celtics general manager Danny Ainge informed Rivers of the failed trade talks on Tuesday morning, and reiterated the Celtics' desire to have him return and fulfill the final three years and $21 million left on his contract, sources said.
The Celtics and Rivers planned to reach a final resolution in the next few days, sources said.
The Clippers refused to part with two first-round picks and DeAndre Jordan as part of package to bring Kevin Garnett and Rivers to Los Angeles. The Clippers had started to waver on the trade in the past few days, inspiring belief among many in the process that the notoriously frugal franchise had grown uneasy about paying Rivers the five-year, $35 million contract that it had negotiated with him, along with a $3 million-plus trade kicker on Jordan's contract.
The Clippers plans to return to interviewing candidates for their coaching job, including Brian Shaw, Byron Scott and Lionel Hollins, sources said.
The Clippers informed the Celtics on Tuesday morning that they were unwilling to meet Ainge's price to complete the deal. There were no discussions about discussing other ways to complete the deal, sources said.