I don't see how an oxygen sensor going bad would cause your right front wheel to lock up.
Is it a continual problem or was it a one time thing?
Seems rather odd that you wouldn't have a specific error code showing up for the braking system to give you a clue.
Can you get the car on a lift and take a look at that right front wheel? Specifically looking at the hub to see if the sensor or wiring there has gotten damaged. And to see if the wheel turns easily.
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