(ESPN) Banned Los Angeles Clippers owner Donald Sterling isn’t going away without a fight.

Sterling’s lawyer has informed the NBA that Sterling will not be paying the $2.5 million fine levied on him last month by commissioner Adam Silver, sources confirmed to ESPN.com on Thursday night.

That fine was due this week, according to a source with knowledge of the situation.

In a letter sent on Sterling’s behalf, attorney Max Blecher also threatened to sue the league if Sterling is not afforded due process.

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