Boxing

====Swarmer/in-fighter====
[[File:Henry Armstrong 1937.jpg|thumb|right|[[Henry Armstrong]] was known for his aggressive, non-stop assault style of fighting.]]
In-fighters/swarmers (sometimes called "pressure fighters") attempt to stay close to an opponent, throwing intense flurries and combinations of [[Hook (boxing)|hooks]] and uppercuts. Mainly Mexican, Irish, Irish-American, Puerto Rican, and Mexican-American boxers popularized this style. A successful in-fighter often needs a good "[[chin (boxing)|chin]]" because swarming usually involves being hit with many [[jab]]s before they can maneuver inside where they are more effective. In-fighters operate best at close range because they are generally shorter and have less reach than their opponents and thus are more effective at a short distance where the longer arms of their opponents make punching awkward. However, several fighters tall for their division have been relatively adept at in-fighting as well as out-fighting.

The essence of a swarmer is non-stop aggression. Many short in-fighters use their stature to their advantage, employing a bob-and-weave defense by bending at the waist to slip underneath or to the sides of incoming punches. Unlike blocking, causing an opponent to miss a punch disrupts his balance, this permits forward movement past the opponent's extended arm and keeps the hands free to counter. A distinct advantage that in-fighters have is when throwing uppercuts, they can channel their entire bodyweight behind the punch; [[Mike Tyson]] was famous for throwing devastating uppercuts. [[Marvin Hagler]] was known for his hard "chin", punching power, body attack and the stalking of his opponents. Some in-fighters, like Mike Tyson, have been known for being notoriously hard to hit. The key to a swarmer is aggression, endurance, chin, and bobbing-and-weaving.

Notable in-fighters include [[Henry Armstrong]], [[Aaron Pryor]], Julio César Chávez, Jack Dempsey, [[Shawn Porter]], Miguel Cotto, [[Gennady Golovkin]], [[Joe Frazier]], Danny García, [[Mike Tyson]], Manny Pacquiao, [[Rocky Marciano]],<ref>James Roberts and Alexander Skutt, ''The Boxing Register'', 1999, p.75</ref> [[Wayne McCullough]], [[James J. Braddock|James Braddock]], [[Gerry Penalosa]], [[Harry Greb]],<ref>James Roberts, Alexander Skutt, ''The Boxing Register'', 1999, p.98, 99</ref><ref>James Roberts and Alexander Skutt, ''The Boxing Register'', 1999, p.339, 340</ref> [[David Tua]], [[James Toney]] and [[Ricky Hatton]]. This style was also used by the ''Street Fighter'' character [[Balrog (Street Fighter)|Balrog]].{{citation needed|date=December 2021}}