Link defenders are the most important decision-makers on the defensive line. They sit between the middles and the wings, and on every touch they have to make a binary choice that the rest of the defense depends on. The link is often the defender under the most pressure because they must make rapid decisions with threats on both sides.
The choice is simple to state: come up hard and shut the inside, or hold and cover the outside. Coming up hard pressures the ball carrier and cuts off the inside option. Holding keeps the link in position to defend a wide pass to the wing. Each option leaves something open — what matters is choosing the right one on this particular touch, and committing fully to it.
Coming up too early creates a hole inside the link, which is the most exploited gap in touch rugby. Holding too long leaves the wing isolated against an overload. Drifting — neither coming up nor holding — covers nothing well and is usually worse than either pure option.
The link's job is to make the wing's job easier. By making the right call, the link forces the ball carrier into a low-percentage choice: either pass to the wing (where the wing is set and waiting) or take the touch inside (where the link is). The wing should never have to defend a 2-on-1 alone.
Communication is essential. The link must call their decision loudly so the wing and middle know how to adjust. A silent link defense leaves teammates guessing on every touch.
The most common failure modes are coming up too early (creates the inside gap), coming up too late (overload outside), drifting (covering nothing), playing silently, and chasing the ball single-mindedly instead of holding shape.