Ex-pro tennis player Justin Gimelstob has filed court docs to get a restraining order against the man he beat up back in October ... claiming the man is hellbent on revenge.
Gimelstob was involved in a physical altercation with Randall Kaplan in Brentwood, CA on Halloween 2018. Kaplan claimed he suffered injuries from the incident. Gimelstob claimed Kaplan instigated the fight.
Gimselstob ultimately pled no contest to felony battery -- which the judge later reduced to a misdemeanor. He was sentenced to 3 years probation and 60 days of community service.