8:44 AM PT -- A spokesperson for the Alameda County Sheriff's Dept. tells us they WILL be pursuing a misdemeanor criminal charge against Ujiri for the alleged incident.
Sgt. Ray Kelly tells us, "[Ujiri] shoved our deputy and tried to walk past him." That's when Sgt. Kelly says the deputy "pushed [Ujiri] away from the court."
Sgt. Kelly says Ujiri came back with a "second more significant push" with a part of his arm striking the deputy in the face.
Sgt. Kelly says the department believes Ujiri committed misdemeanor battery on a law enforcement officer.