 He remained with the Navarrese for two further campaigns, as they consecutively retained their status.In 2002–03, Lotina led RC Celta de Vigo to its first participation in the UEFA Champions League, after the Galicians finished fourth.In the following season, however, even though the team progressed through the group stage by notably defeating A.C. Milan 2–1 at the San Siro, he was sacked after 21 rounds, with the club eventually being relegated.