Alberto Rivera Pizarro (born 16 February 1978) is a Spanish retired footballer who played as a central midfielder. He started out at Real Madrid, but played almost exclusively for its reserve teams during his spell. In a professional career that spanned nearly two decades, he went on to amass La Liga totals of 282 matches and ten goals over 12 seasons, also representing in the competition Numancia, Levante, Betis, Sporting de Gijón and Elche. Club career Real Madrid Rivera was born in Puertollano, Ciudad Real, Castilla–La Mancha. A product of Real Madrid's youth academy, he made his first-team debut aged only 17 (his only appearance for the main squad during 1994–95), scoring in a 2–0 away win against RC Celta de Vigo with the La Liga title race already decided in their favour while becoming the youngest player to score in an official match in the club's history at the age of 17 years and 114 days. He started his senior career with the C team in the Segunda División B, playing two additional full seasons with Real Madrid Castilla in the same level and appearing in five Segunda División games with the latter. For 1999–2000, Rivera signed with CD Numancia in a loan deal. After helping the Soria side barely avoid top-division relegation he returned to Real Madrid, where he was featured in two additional league games the following season; in January 2002 he had another loan spell, with Ligue 1 side Olympique de Marseille to where he moved alongside Alfonso Pérez from FC Barcelona, and appeared regularly for the French team until the end of the campaign, in an eventual ninth-place finish. Levante and Betis Rivera joined Levante UD in 2002, with the team in the second division. He was an undisputed starter in three seasons, netting a career-high 11 goals in 2003–04's promotion before moving on to Real Betis upon Levante's immediate relegation (having played all the matches but one, with five goals), for €3.4 million. Rivera made 34 league appearances in 2005–06, adding seven in the UEFA Champions League and three in the UEFA Cup, without finding the net however. The following campaign he played 27 times, scoring his first goal in a 3–2 defeat at Villarreal CF on 5 November 2006. Sporting In mid-June 2009, after rejecting Betis' offer of a new deal, and with the Andalusians having been relegated, Rivera signed a one-year contract