Regardless of if I should have folded this hand after the all-in bet, should my opponent have made this play with his holding? I tried pulling off a sqeeze-play, he had just been moved to our table so we both had no reads.

<pre>pokerstars Game #14255965964: Tournament #71876246, $10+$1 Hold'em No Limit - Level
IV (50/100) - 2008/01/01 - 19:47:20 (ET)
Table '71876246 53' 9-max Seat #2 is the button
Seat 1: coral-run (11498 in chips)
Seat 2: &thanUout (6255 in chips)
Seat 3: ToCcSa (7010 in chips) out of hand (moved from another table into small blind)
Seat 4: ImoOnTilt (2810 in chips)
Seat 5: <*{{{>< 2064 (7000 in chips)
Seat 6: whopper (1050 in chips)
Seat 7: liberty4some (11445 in chips)
Seat 8: SAINT2 (1510 in chips)
Seat 9: Fluffnfold (4895 in chips)
ImoOnTilt: posts small blind 50
<*{{{>< 2064: posts big blind 100
*** HOLE CARDS ***
Dealt to ImoOnTilt [4d 4c]
whopper: folds
liberty4some: folds
SAINT2: folds
whopper said, "a dumbazz is a dumbazz"
Fluffnfold: raises 200 to 300
coral-run: calls 300
&thanUout: folds
whopper said, "would be diff is they actuall had anything"
ImoOnTilt: raises 700 to 1000
<*{{{>< 2064: folds
Fluffnfold: raises 3895 to 4895 and is all-in
coral-run: folds
ImoOnTilt: calls 1810 and is all-in
whopper said, "jokers make me wanna puke"
*** FLOP *** [6c 5d Tc]
*** TURN *** [6c 5d Tc] [Ac]
*** RIVER *** [6c 5d Tc Ac] [Ks]
*** SHOW DOWN ***
ImoOnTilt: shows [4d 4c] (a pair of Fours)
Fluffnfold: shows [9d 9h] (a pair of Nines)
ImoOnTilt is sitting out
Fluffnfold collected 6020 from pot
*** SUMMARY ***
Total pot 6020 | Rake 0
Board [6c 5d Tc Ac Ks]
Seat 1: coral-run folded before Flop
Seat 2: &thanUout (button) folded before Flop (didn't bet)
Seat 4: ImoOnTilt (small blind) showed [4d 4c] and lost with a pair of Fours
Seat 5: <*{{{>< 2064 (big blind) folded before Flop
Seat 6: whopper folded before Flop (didn't bet)
Seat 7: liberty4some folded before Flop (didn't bet)
Seat 8: SAINT2 folded before Flop (didn't bet)
Seat 9: Fluffnfold showed [9d 9h] and won (6020) with a pair of Nines</pre>