 On returning to Spain in 1940, Lezama joined Arenas Club de Getxo in Segunda División.In 1941 he signed for Athletic Bilbao, and made his La Liga debut on 27 September 1942 in a 5–0 home win over Real Betis.The 1942–43 season saw the side, with a team that also included Telmo Zarra, José Luis Panizo and Agustín Gaínza, win a double (league and Copa del Rey); he helped Athletic retain the cup in both 1944 and 1945, winning it again in 1950.