The 31-year-old nose tackle was arrested shortly after midnight after his pickup truck sideswiped a semitrailer truck on Texas 114 in eastern Grapevine, 20 miles northwest of Dallas.
No one was injured, but Ratliff failed a field sobriety test and was taken to city jail, said Grapevine police Officer Sam Shemwell. Ratliff declined a breath test, but police obtained a blood sample for testing, Shemwell said.
Ratliff was limited to six games this season with ankle and groin injuries.
The arrest came less than a month after fellow Cowboys nose tackle Josh Brent was indicted on an intoxicated manslaughter count in the Dec. 8 crash that killed his friend and Cowboys practice squad member Jerry Brown. He remains free on $100,000 bond.
Intoxication manslaughter carries a maximum sentence of 20 years in prison, but Brent could be eligible for probation if convicted.
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