Ex-NFL star Justin Blackmon was arrested for DUI in Oklahoma this weekend -- his 2nd DUI in three years.
The 25-year-old wide receiver -- a 1st round pick in the 2012 NFL Draft -- was arrested at 4:45 AM on Saturday morning in Carter County, OK.
He was taken to a nearby station where he was booked and posed for a mug shot.
The Jacksonville Jaguars player was suspended indefinitely from the NFL since last year ... when he was arrested in Oklahoma for marijuana possession.
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