Preflop play in a DeepStack tourney on Stars

This is in a $20+2 Stars NL Hold'em DeepStack tournament. I still don't know what to do with AJo in the Small Blind when everyone folds to Villian who raises to 750 in late position with blinds of 100/200.

My stack is 10.5k, he has me covered but is not a huge stack (he has about 14k, if I remember correctly).

I'm not sure if it was a weak play but I folded preflop.