99 in the SB - Stars $22 180 SnG, level 1....is this a donk play?

This is a tough one. If Villian had a 3 or a 5, why the all-in? That raise screams "please don't call me." I read villian as having a PP or A high. He would want a caller; unless he's a donk, then he could go all-in. But even a donk would want you to call right? Here's some math to ponder. Take out your pocket nine's and Villian could be dealt a total of 2450 starting hands, only 30 of these possible hands will be pocket 10's or better.

After the flop, when you check-raise and were only called, I agree with the below...you need to keep acting like you like your hand.

So it's a hard choice, there's a much better than average chance your hand is good, but it's so early in the tournament and Villian is hard to read...