AA 20 BB pot

[Bond18]

Hero is Sb with A [img]/images/graemlins/diamond.gif[/img] A [img]/images/graemlins/club.gif[/img], pacific 10/20

Preflop: UTG raises, MP calls, 2 folds, hero 3 bets, BB folds, utg caps, MP calls, hero calls

Flop: 9 [img]/images/graemlins/heart.gif[/img] 6 [img]/images/graemlins/spade.gif[/img] 3 [img]/images/graemlins/spade.gif[/img]
Hero checks, utg bets, MP raises, hero 3 bets, utg calls, MP caps, hero calls, utg calls

Turn: T [img]/images/graemlins/club.gif[/img]
Hero bets, utg calls, MP calls

River: Ts
Hero bets, utg calls, MP raises, hero?

Now what? check call that river instead?