Joe Montana's son has pleaded guilty to a reduced charge of reckless driving stemming from a traffic stop in which he declined a breathalyzer test, according to an ESPN.com report. Nate Montana was pulled over for going 39 mph in a 25 mph zone in Missoula early June 3. The 21-year-old U. of Montana QB was arrested on a first-offense DUI charge after a sheriff's deputy said he smelled alcohol and that Montana fumbled with his driver's license. The Missoulian says Montana pleaded guilty June 23 to the reckless driving charge and paid $435 in fines and court costs. The speeding charge was dropped. He received a 90-day suspended jail sentence and must complete a chemical dependency evaluation.