49ers defensive lineman Ray McDonald was arrested early Wednesday morning in Sunnyvale, California.
McDonald was pulled over at around 2am for a traffic violation and was taken into custody over an outstanding warrant tied to a 2010 arrest for suspicion of driving under the influence.
No other charges were filed and McDonald was released at 7am.
The 27-year-old signed a five-year, $20 million contract extension last July. In a starting role for the first time in his NFL career, McDonald had a career-high 39 tackles and 5.5 quarterback sacks.