Lyuboslav Mladenov Penev (; born 31 August 1966) is a Bulgarian professional football manager and former player. Penev played as a forward for several clubs in Bulgaria and Spain. He started his career at CSKA Sofia in 1984, winning two Bulgarian League titles and four Bulgarian Cups. In 1989 he moved to Valencia, where he established himself as among the most prolific goalscorers in La Liga. After six seasons at Valencia, Penev joined Atlético Madrid, winning the 1995–96 La Liga. After leaving Atlético, he had stints with Compostela, Celta Vigo, CSKA and Lokomotiv Plovdiv. Club career Penev's first professional team was CSKA Sofia of the Bulgarian capital. He made his first team debut in 1984, when he was only 18 years old. CSKA of the late 1980s was the football "alma mater" to several Bulgarian players like Hristo Stoichkov who made it to the international team in the 1990s. During those days Lubo's teammates included defender Trifon Ivanov, winger Emil Kostadinov, and striker Hristo Stoichkov. With CSKA, Penev won the Bulgarian A Football Group twice (in 1987 and 1989) and the Bulgarian Cup three times (in 1987, 1988 and 1989). He was also voted Bulgarian Footballer of the Year in 1988. In 1989, after reaching stardom in Bulgarian football, he took an important step in his career by moving to La Liga. In Primera, Penev played for four clubs: Valencia CF, Atlético Madrid, SD Compostela and Celta Vigo. The highlight of the Spanish years was the 1995–1996 season with Atlético, when the club won both the league championship and the Spanish Cup. Penev was the most efficient player of the "double squad" by scoring 22 goals in 44 games (including both league and cup matches). International career Penev made his debut for the Bulgaria national team on 20 May 1987, playing as a starter in the 3–0 home win over Luxembourg in a Euro 1988 qualifier, before being substituted by Petar Aleksandrov during the second half. He represented Bulgaria in 1996 European Football Championship in England and in the 1998 World Cup in France. He could not take part in the 1994 World Cup, as he had been diagnosed with testicular cancer at the beginning of 1994. For the same reason he was replaced by Nasko Sirakov during the match Bulgaria vs Romania at UEFA Euro 1996 in England. Coaching career In March 2009, he succeeded his uncle Dimitar Penev