Angelina Jolie -- Adds Powerhouse Lawyers To Her Dream Team

Angelina Jolie just added a couple of aces to her already star-studded lineup of legal eagles -- coming on board are the 2 lawyers who helped Shelly Sterling execute the sale of the L.A. Clippers.

Sources close to the situation tell TMZ ... Angelina hired Pierce O'Donnell and Bert Fields in a move to bolster her team that's led by disso queen Laura Wasser. The explanation is simple -- Pierce and Bert are accomplished trial lawyers who add firepower to the team.

Obvious question -- Why does Angie need trial lawyers? Glad you asked ... if her divorce case with Brad Pitt gets super ugly ... well, it becomes a whole "May it please the court" thing.