Strange play, strange player PLEASE REVIEW

[pokernicus]

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I put him on JJ or KK. Guess he's not that strange to me :-)

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JJ or KK even though there was no pre-flop raise? Sometimes people limp with JJ, but it's much more rare to see that with KK (especially since there were already a couple of limpers ahead).

This is a pretty strange hand. Up until the river, I had him on 99 -- but after the check down, I was somewhat befuddled.