Check this river right? (10/25 UB)

[AZK]

10/25 effective stack about 2500. 2 limpers and SB completes, I raise pot with A[img]/images/graemlins/diamond.gif[/img]K [img]/images/graemlins/club.gif[/img] , 2 callers. Pot is 400ish.

Flop 9 [img]/images/graemlins/club.gif[/img]8 [img]/images/graemlins/club.gif[/img]4 [img]/images/graemlins/diamond.gif[/img]

I bet pot, 1 caller.

Don't know much about this guy, pretty timid postflop, seems to lay down more often than he should. Played a QQ hand really passive against me postflop that allowed me to catch up and hit 2 pair on river. He was talking to another player and claims it's his first day playing 10/25 on UB. Meanwhile he has like 5k+ stacks at each table

Turn J [img]/images/graemlins/club.gif[/img]

I check, he checks.

River 4 [img]/images/graemlins/club.gif[/img]

Hero?

I apologize if this is really boring/standard. Probably a check. If the river is a 2c instead, does your answer change?