Usero was born in
Brazatortas,
Province of Ciudad Real,
Castilla–La Mancha. After emerging through
Málaga CF's youth system, and a brief spell at
Atlético Madrid's
reserves, he returned to the
Andalusians, playing two seasons with their
B team in the
Segunda División and scoring a career-best seven goals in
2005–06. Additionally, he managed to appear four times for the main squad in the same timeframe, as both were relegated come June 2006; his
La Liga debut came on 9 January 2005, in a 2–1 away loss against
Racing de Santander. Usero then spent two years at Málaga neighbours
Polideportivo Ejido, being an undisputed starter and suffering relegation at the end of the
2007–08 campaign, following which he signed for another club in the second division,
Elche CF. In summer 2011, having totalled 247 matches in Spain's second tier, he moved abroad for the first time and joined a host of compatriots at
Asteras Tripolis F.C. in Greece, arriving from
Córdoba CF. On 19 June 2015, after a four-month loan with
AD Alcorcón back in his homeland, Usero returned to the
Super League Greece and signed a two-year contract with
Atromitos FC. He went back to Spain afterwards, seeing out his career aged 35 by representing
CD Mirandés (second division),
CD Toledo (
Segunda División B) ==Career statistics==