Early years Born in
Arguineguín,
Gran Canaria, Valerón started playing with hometown's
Las Palmas, but switched to the
Balearic Islands in the
1997–98 season, representing
Mallorca and making his
La Liga debut on 31 August 1997 by playing ten minutes in a 2–1 home win over
Valencia. He was an instrumental figure in the club's
qualification for the
UEFA Cup Winners' Cup, with the team also finishing fifth in the league and
reaching the final of the
Copa del Rey, lost to eventual champions
Barcelona in a
penalty shoot-out.
Atlético and Deportivo In the next two years, Valerón played for
Atlético Madrid where he was an undisputed starter but, following the side's relegation in
2000, he joined
Deportivo de La Coruña, sharing club and position with equally talented Brazilian
Djalminha. He gradually would become first choice, signing a contract to eventually see off the remainder of his career with the
Galicians in February 2004. In January 2006, however, Valerón started a bad run with injuries. He suffered a
knee injury which relapsed in July and early 2007 (with him only managing two league appearances in the process), leading to another surgery. Consequently, he did not reappear until midway through the
2007–08 campaign. On 27 January 2008, Valerón returned to the bench in Deportivo's 3–1 home win against
Real Valladolid, coming on as a
substitute for
Andrés Guardado for the final 15 minutes – his first match for over a year. In
2008–09, aged 33, he eventually became an important first-team fixture again, both on domestic and
European fronts. The 36-year-old Valerón was an undisputed starter for Depor in the
2011–12 season, scoring a career-best five goals in nearly 3,000 minutes of action in
Segunda División as his team returned to the top flight after one year out, as champions. Even though he had a contract until 2015, he chose to leave in June 2013, having taken part in 422 games in all competitions (32 goals).
Return to Las Palmas On 14 July 2013, following
another Deportivo relegation, Valerón returned to his first club Las Palmas after 16 years, signing a one-year contract with an option for a second. He continued to be an important first-team member during his tenure, achieving promotion to the top flight
in 2015. In summer 2015, Valerón renewed his contract with the
Amarillos for a further year. On 26 September, he first appeared with the club in the top flight, featuring 22 minutes in a 1–2 away loss to Barcelona in what was his first game in the competition in 847 days, and becoming the fifth oldest player to play there at the age of 40 years and 101 days; he climbed one position on 12 December after coming on as substitute against
Real Betis, surpassing former Deportivo teammate
Donato. On 1 March 2016, after being featured in a 4–0 home win against
Getafe, Valerón appeared in his 400th game in the Spanish top tier. On 7 May, he announced his retirement. ==International career==