RIVERSIDE, MO. ? Kansas City Chiefs wide receiver Dwayne Bowe was arrested outside Kansas City over the weekend on charges of speeding and possessing marijuana, throwing his status for a pivotal AFC West showdown against the Denver Broncos into question.

Bowe was pulled over for going about 48 mph in a 35 mph zone, police in suburban Riverside said Tuesday. Police said an officer smelled “a strong odor of marijuana from inside of the vehicle,” and asked Bowe and two passengers to get out of the car.

Police then used a dog to search for illegal substances and found a bag with Bowe’s wallet and two containers holding what the officer suspected was marijuana. One container held 6.6 grams of the substance, and the other had 3.8 grams, or about one-third of an ounce in all.

Bowe was cited for speeding and possession of a controlled substance, police said. He posted $750 bond and is scheduled to appear in Riverside court on Dec. 18.

Chiefs spokesman Ted Crews said the team was aware of the situation but declined further comment. Bowe’s agent, Todd France, did not return a message seeking comment.

It’s unclear whether Bowe will be available for Sunday’s game. While penalties have varied, Commissioner Roger Goodell historically has suspended players one game without pay and fined them an additional game check for possession of marijuana, once the case is finalized.

Bowe was suspended four games in 2009 for violating the NFL’s policy on performance-enhancing drugs after taking what his agent called an unapproved weight-loss supplement. But that policy differs from the NFL’s most recent substance-abuse policy, which governs illegal drugs and alcohol abuse.

The unbeaten Chiefs were off Tuesday before resuming preparations for their Sunday night game against the Broncos, who are a game back in the division standings. It’s the first of two games that the longtime rivals will play in a span of three weeks.

A passenger in the car was also arrested for possession of a controlled substance after the police dog found a backpack that contained 4.2 grams of suspected marijuana. Riverside is a community of about 3,000 residents located just north of Kansas City.