 Born in Lleida, Catalonia, Gensana began to play football in the youth ranks of UE Lleida, the team with which he made his debut in the Second Division and where he played along Gonzalvo III, Basora and Moreno, who gave very good reports of him to Barça's technical staff.He signed for Barça in 1956 and in the same year the team won the Cup and he made his debut with the national team.His debut with UE Lleida was on 3 April 1955 at the age of 19 in a Second Division game between UE Lleida and España Industrial (1–4).