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The Andalusian side last featured in Spain's top flight in 2005-2006 and was in the third tier for seven of its campaigns since then. 

A 1-0 defeat at home to Fuenlabrada on Sunday (AEST) saw Cadiz miss a chance to secure their ascension from the Segunda Division. 

However, the league leader received a favour from mid-table Oviedo, who claimed a 4-2 win at La Romareda to ensure Cadiz cannot be caught by any team sitting outside the top two. 

Alvaro Cervera's side narrowly missed out on a play-off spot last term but are now on the brink of clinching the title, as they sit five points clear of second-placed Huesca.