Clares made his debut in the Spanish top flight on 17 September 1972, in a 1–4 home loss against Athletic Bilbao.[2] During the campaign, he contributed 11 goals from 30 appearances to help the Valencians to a best-ever fifth position, as well as the final of the Copa del Rey.[3] Subsequently, he caught the eye of both FC Barcelona and Real Madrid,[4] but as the former had practically secured his services,[5] manager Lucien Muller opposed to the transfer citing his team's lack of attacking options.[6]
In late May 1974, after Castellón's relegation, Clares finally joined Barcelona, as a direct replacement for Johan Cruyff as the foreign players were not allowed to participate in the Spanish Cup.[7] He finished top scorer of the knock-out competition with five goals in only six matches,[8] but the final ended 4–0 in favour of Real Madrid.[9]
During his four-year spell at the Camp Nou, Clares was regarded as a highly inconsistent player, capable of scoring wonderful goals but also of missing clear chances.[10] On 28 November 1976, he netted five of the Blaugrana goals in a 6–1 home demolition of Valencia CF,[11] for a total of 22 during the season.[9]
In July 1978, after the arrival of president Josep Lluís Núñez, and with him former coach Muller, Clares was transferlisted. He moved to Rayo Vallecano in October,[12] going on to be relatively played over a two-year tenure and retiring at the age of 32, even though he later returned for a spell in the lower divisions.[1]
International career
Clares won one cap for Spain: on 17 October 1973, he played 67 minutes in a 0–0 away friendly draw with Turkey.[13]
^De las Heras, M. (16 July 1973). "Clarés fichará hoy por el Barcelona" [Clarés will sign for Barcelona today] (PDF). Mundo Deportivo (in Spanish). Retrieved 8 February 2016.
^"Zabalza, con un pie en Bilbao" [Zabalza, all but in Bilbao]. Mundo Deportivo (in Spanish). 5 September 1973. Retrieved 8 February 2016.