22+R AA hand--check behind?

[hERESY]

PokerStars No-Limit Hold'em Tourney, Big Blind is t5000 (8 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB (t50964)
UTG (t128847)
UTG+1 (t95106)
MP1 (t120224)
Hero (t89790)
CO (t125702)
Button (t70307)
SB (t192140)

Preflop: Hero is MP2 with A[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises to t13500</font>, <font color="#666666">2 folds</font>, Hero calls t13500, <font color="#666666">4 folds</font>.

Flop: (t30500) 7[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, <font color="#CC3333">Hero&gt;</font>

is check behind standard or what?

2 hands before this one, same villain:


PokerStars No-Limit Hold'em Tourney, Big Blind is t5000 (8 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP1 (t40964)
MP2 (t143847)
CO (t96606)
Button (t121724)
Hero (t68790)
BB (t134702)
UTG (t81807)
UTG+1 (t184640)

Preflop: Hero is SB with 8[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">MP2 raises to t14000</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to t68790</font>, <font color="#666666">1 fold</font>, MP2 folds.

Final Pot: t31000