I had the following situation a couple of weeks ago:
Quite expensive live tournament, 40 entrants, 7 in the money, around 15 players left. My stack is 4200, which is less than average (avg. around 7000) and the blinds have recently gone up to 400/800.
I receive a crappy A5o from button+2, see that everyone has folded to me and make it 2500 to steal the blinds (the table is mostly weak/tight and I have a pretty tight image) - however, the dealer points to the UTG player who has moved all-in for 3900 chips, without me noticing it - thus I either fold my hand and give up the 2500 that I have already put in the middle, or call for an additional 1400. In most of the situations it would be a rather easy call - 6400 in the middle, 1400 to call and around two big blinds left if I fold - but the problem here is that the UTG player has been showing a VERY tight play for the whole tournament, playing only big pocket pairs and only when having a position. Considering that he moved in from UTG this time, I am fairly sure to find either AA or KK (perhaps QQ/AK) from there, and I start doubting if I maybe should fold and gamble my remaining 1700 chips on one of the following hands.
What's your play?

