Sevilla missed a chance to take over first place in the Spanish league Sunday, allowing Javier Portillo to score the winning goal in the 76th minute in a 1-0 loss to Gimnastic Tarragona. Portillo, on loan from Real Madrid, headed in Jose Maria Calvo’s floated pass to keep FC Barcelona in first place. Sevilla, which had been unbeaten in seven games, needed a draw at Nou Estadi to reclaim first place but gave a below-par display, even though striker Frederic Kanoute headed onto the bar just before halftime. Gimnastic’s victory continued its recent improvement. The 19th-place Catalan club has lost only twice in the past seven games. Also, third-place Valencia drew 1-1 at Osasuna to move within three points of the lead. Osasuna captain Patxi Punal converted a 35th-minute penalty, awarded after Valencia defender Emiliano Moretti pulled midfielder Raul Garcia. Valencia substitute Fernando Morientes equalized in injury time with a glancing header from Miguel Brito’s floated pass. The goal was the Spain striker’s 11th of the season. The game at Osasuna’s Reyno de Navarra stadium was attended by Chelsea coach Jose Mourinho, whose team meets Valencia in next month’s Champions League quarterfinals. Valencia advanced on Tuesday by eliminating Inter Milan. Barcelona and Sevilla each have 50 points, although the defending champions are first because of head-to-head results. Valencia has 47, two more than Real Madrid. Zaragoza and Atletico Madrid follow with 43. Also Sunday, it was: Real Betis 1, Zaragoza 1; Atletico 2, Deportivo La Coruna 0; Getafe 1, Recreativo Huelva 1; Real Sociedad 3, Mallorca 1; Celta Vigo 1, Athletic Bilbao 1; and Racing Santander 1, Espanyol 1.