The odds really don't allow a fold here.
The pot is 210$ before we call and we only have to call 30$.
Our chance to hit a set is 11%, and we only invest 12,5% of the total 240$ pot we create.
So we only have to win a few bucks if we hit, and we can be pretty sure to win big if we hit, so calling is a good play here!
It is very hard to estimate how good the push is though.
It could well be better, just imagine you get called by AK only, or something like that, which would leave us as a favorite for a 560$ pot!
In the actual hand, hero decided to push All-In and got lucky on the flop.
Party Poker No-Limit Hold'em, $ Hero (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)
UTG ($398.50)
UTG+1 ($987)
MP1 ($1581.50)
MP2 ($104)
MP3 ($443)
CO ($997)
Button ($4106.50)
SB ($2701.75)
Hero ($200)
Preflop: Hero is BB with T♠, T♥. SB posts a blind of $5.
UTG calls $10, UTG+1 raises to $40, 3 folds, CO calls $40, Button calls $40, SB (poster) calls $35, Hero raises to $200 (All-In), UTG folds, UTG+1 folds, CO calls $160, Button calls $160, SB folds.
Flop: ($690) 5♠, T♦, 2♦ (3 players, 1 all-in)
CO bets $200, Button folds.
Turn: ($890) 3♠ (2 players, 1 all-in)
River: ($890) 8♦ (2 players, 1 all-in)
Final Pot: $890