JJ in tournaments
The strategy for drawing pocket jacks in tournaments differs from cash games. In tournaments, with the exception of the early stage, I usually play with a short stack. This means that the power of JJ increases.
With a stack of 10-25 BB, I am ready to go all-in even before the flop, unless I had several raises-reraises in front of me at once. Playing this pre-flop hand aggressively will allow you to collect "dead money" without a fight and avoid the problems that are sure to arise when entering the flop call.
Pocket jacks are strong, but also difficult to draw hands. With it, I try not to break up the Bank. If I don't get a set on a post-flop with an overcard, I play carefully and am ready to fold in response to a big raise.
Life is a game , play beautiful