The game of no-limit Hold’em has changed immeasurably in the past few years, and nowhere is this more apparent than pre-flop aggression. A few years ago a re-raise pre-flop meant Aces, Kings, Queens or Ace-King. In fact, players who made re-raises with anything else were seen as maniacs who would quickly go broke. Old-school no-limit players were taught that hands like Jacks and Tens couldn’t stand a re-raise pre-flop and aggressive moves were saved for post-flop play. Now if you watch good players, re-raising before the flop is commonplace, and to survive in the modern game you’ll need to master the skill, so let’s look at how.