Fold middle flush vs river raise?

[skibbel]

PokerStars No-Limit Hold'em, $1.00 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($97.50)
Button ($71.40)
Hero ($331.80)
BB ($65.45)
UTG ($158.65)

Preflop: Hero is SB with 7[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/diamond.gif[/img].
UTG calls $1, MP calls $1, <font color="#666666">1 fold</font>, Hero completes, BB checks.

Flop: ($4) T[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets $4</font>, BB folds, UTG folds, MP calls $4.

Turn: ($12) K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $8</font>, MP calls $8.

River: ($28) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $22</font>, <font color="#CC3333">MP raises to $50</font>, Hero ???

Villian 18/7/1.5/30/70h

Raising should be out of question. No brainer call or some1 finds a fold?

[kolotoure]

I am never folding here

[sholler]

Don't have much to offer in analysis on this hand but I just can't see a fold here ever. I think A or Q high flush draws raise this flop if AF is remotely accuracte (and it's probably not due to sample size).

[Jonezycat]

I just don't see myself losing here more than 70% of the time. I call.

[HoldEmNewby]

For a mini raise i think its a trivial call.

[Nick Royale]

Easy call. QJ just hit. Still expect to be behind often.