NBA's Jaxson Hayes Sued

New Orleans Pelicans star Jaxson Hayes is being dragged to court by his ex-girlfriend ... with the Instagram model accusing him of getting physical with her.

Hayes, the 8th overall pick in the 2019 NBA Draft, is being sued for assault and battery by Sofia Jamora, who claims he roughed her up on multiple occasions during their relationship ... including the night he got into a scuffle with cops.

According to the lawsuit, obtained by TMZ, Jamora claims they started dating in October 2020 and the NBA stud first got violent with her on Valentine's Day 2021, violently abusing her in a Dallas hotel room.

In the docs, Jamora claims she traveled with Jaxson for his NBA game and shared a hotel room,…