Deontay Wilder spent part of his Tuesday morning locked behind bars … TMZ Sports has learned the star boxer was arrested in Los Angeles following a routine traffic stop.

Law enforcement sources tell us … Wilder was pulled over in Hollywood at around 1:15 AM after LAPD officers claimed his Rolls-Royce’s windows were illegally tinted and his license plate was obstructed.

During the stop, cops say they smelled an odor of burnt marijuana coming from his ride — so they searched the car. Our sources say they then found weed and a 9mm in the vehicle, and put Wilder into custody. We’re told the 6-foot-7 fighter was cooperative and nice throughout the whole ordeal.

Our sources say the 37-year-old was booked on a charge of possession of a concealed weapon. Jail records show he bonded out at 6:34 AM.

Wilder — a 43-2-1 fighter with 42 knockouts on his resume — has been rumored to be the next opponent for Anthony Joshua … with the heavyweight superfight expected to go down at some point in 2023.

It’s unclear if Tuesday’s arrest will have any impact on the fight’s negotiations.

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