Assertion: goalkeeper's position | /r/HasProperty | libero
Facets:
value: essentially
type: DEGREE
Source sentences:
text: His system used a man-marking back-line, with three man-marking defenders and a full-back who was described as a terzino volante (or vagante, as noted at the time by former footballer and Gazzetta dello Sport journalist Renzo De Vecchi); the latter position was essentially a libero, which was later also used by Viani in his vianema system, and Rocco in his catenaccio system.