Overlap versus underlap
The overlap is the classic run outside the winger to the touchline. The underlap is the run inside them, into the half-space between the opposition's full-back and centre-back. As modern teams pack the wide areas and invert their full-backs, that inside lane has become the more dangerous one — it arrives closer to goal and it drags defenders into decisions they hate. The Athletic's piece traces exactly why the inside run has taken over; it's worth reading in full.
The part I coach
I do not want players who only overlap or only underlap. I want players who look at the picture and choose. Is the space outside or inside? Where is the winger's defender looking? An underlap when the half-space is open is brilliant; an underlap into a crowded inside lane is just a bad decision with a fancy name. So I teach both runs and then, in games, I coach the read — which one did the moment call for, and did you see it? The run is execution. The choice is the development.
