Quick ruling Question?

[PantsOnFire]

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ok, just to clear up, player A has a tack of 20,000 he limps for 600 ,player C moves all in for 4000, player D who has a stack of 15,000 just calls the 4000 all in from player C,
player A can now move all in to make a sidepot as he has still been raised from player C, i am sure this scenario has happened lots of times to most regular players,but never gave it much thought till now,

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Right, so if you are player D, you should be ready for that. If you have AA, you call and just wait for player A to move in. If you have TT, maybe you just move in yourself to squeeze player A out and deny him his 2:1 call odds.

Of course the flip side of that is what we have been talking about. Player A bets 3000 and Player C goes all-in for 4000. Now, if Player D just calls 4000, Player A can't raise and maybe that's what Player D wants.