Club Atlético Osasuna, or simply Osasuna, is a Spanish football team based in Pamplona, Navarre. Founded in 1920, it currently plays in Segunda División, holding home games at the 19,800-capacity El Sadar Stadium. Arena/Stadium: El Sadar Stadium Location: Pamplona, Spain Manager: Diego Martínez Nickname(s): Los Rojillos/Gorritxoak (The Reds) Leagues: Copa del Rey, Segunda División