SIG Tourney last night. This was the only spot I wasn't quite sure about.
We're 5 or 6 hands in so no reads.
Stacks: All 6500(ish)
Guy in MP makes it 150 to go.
Button re-raises to 300.
I look down at JJ in the SB.
What do I do now and what's my plan for the rest of the hand?