Ched Evans scored twice as Sheffield United eased into the second round of the FA Cup at Oxford United's expense.
The Wales international striker's low finish put the hosts ahead before he made it two with a 25-yard free kick.
U's boss and boyhood Blades fan Chris Wilder threw on striker James Constable at half-time, and he soon forced a save out of Steve Simonsen with a header.
But Ryan Flynn ensured there would be no comeback when he lashed in the third from close range.
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Sheffield United boss Danny Wilson told BBC Radio Sheffield:
"A very strong performance today. I felt we were very much in charge of the game for large periods.
"The first half I think Oxford afforded us a lot of possession with the system that they applied and in fact in that period we got two goals which was great.
"Second half it was a bit more hairy at times in and around our box, because of the substitutions they made. They went very direct on us, but I thought the two centre backs stood their ground fantastically well today under a lot of pressure."