"In association football, the formation describes how the players in a team are positioned on the pitch. Different formations can be used depending on whether a team wishes to play more attacking or defensive football. ...
The 3–3–4 formation was similar to the WW, with the notable exception of having an inside-forward (as opposed to centre-forward) deployed as a midfield schemer alongside the two wing-halves. This formation would be commonplace during the 1950s and early 1960s. One of the best exponents of the system was the Tottenham Hotspur double-winning side of 1961, which deployed a midfield of Danny Blanchflower, John White and Dave Mackay. FC Porto won the 2005–06 Portuguese national championship using this unusual formation under manager Co Adriaanse." [Formation (association football). Wikipedia]
The diagram example "Association football (soccer) formation 3-4-3" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Football solution from the Sport area of ConceptDraw Solution Park.