[FL70]

First choice - Fold. Do you really want to put your tournament on the line on a pair of threes? You're an underdog to almost every decent hand and only the slightest of favorites against something completely random like J6o.

Second choice - Push. He might be on some wacky move.

No choice - Call. Why bother? You're going to be down to 1100 with no good idea of what he has and there's likely to be three overcards to your weak pair.