|Full name||Rudel Alessandro Calero Nicaragua|
|Date of birth||December 20, 1982|
|Place of birth||Bluefields, Nicaragua|
|* Senior club appearances and goals counted for the domestic league only.
‡ National team caps and goals correct as of December 2016
Born in Bluefields, he made his debut for Deportivo Bluefields and played for América before enjoying a lengthy spell with Nicaraguan giants Real Estelí. He was Estelí´s top goalsorer in the 2005 Clausura and Apertura with 11 and 16 goals respectively but after scoring only 7 in the 2007 Apertura he was relegated to the bench only for Bluefield to try to lure him back to the club.
In September 2010, Calero was charged with assault of a young man, the son of a prominent Nicaraguan businessman. Calero claimed the boy swore at him. He already faced prosecution for damage to property, after damaging a vehicle. The ill-disciplined Calero was again arrested in July 2012 after assaulting a citizen and allegedly threatening him with death.
Calero made his debut for Nicaragua in an April 2001 friendly match against Belize and has, as of December 2013, earned a total of 26 caps, scoring 4 goals. He has represented his country in 2 FIFA World Cup qualification matches and played at the 2001, 2003, 2005 and 2011 UNCAF Nations Cups as well as at the 2009 CONCACAF Gold Cup.
- Scores and results list Honduras' goal tally first.
|1.||26 April 2001||MCC Grounds, Belize City, Belize||Belize||1–2||Friendly match|
|2.||29 February 2004||Estadio Independencia, Estelí, Nicaragua||Haiti||1–1||1–1||Friendly match|
|3.||30 April 2004||Estadio Cacique Diriangén, Diriamba, Nicaragua||Bermuda||1–0||2–0||Friendly match|
|4.||13 June 2004||Estadio Cacique Diriangén, Diriamba, Nicaragua||Saint Vincent and the Grenadines||2–2||2–2||2006 FIFA World Cup qualification|
- Rudel ya está con el Estelí - La Prensa (Spanish)
- Rudel Calero con el Estelí - El Nuevo Diario (Spanish)
- Hasta el 2009 - La Prensa (Spanish)
- Preso delantero del Real Estelí - El Nuevo Diario (Spanish)
- Procesan a futbolista por agresión - La Prensa (Spanish)
- RUDEL CALERO, INTEGRANTE DEL EQUIPO REAL ESTELI, TARDA MÁS EN CAER PRESO QUE EN QUEDAR EN LIBERTAD - Nuevo Norte (Spanish)
- Rudel Calero – FIFA competition record
- UNCAF (Qualifying Tournament for Gold Cup) 2001 - Details - RSSSF
- UNCAF (Qualifying Tournament for Gold Cup) 2003 - Details - RSSSF
- UNCAF (Qualifying Tournament for Gold Cup) 2005 - Details - RSSSF
- Copa Centroamericana 2011 (UNCAF Nations Cup) - RSSSF
- CONCACAF Championship, Gold Cup 2009 - Full Details - RSSSF
- Rudel Calero at National-Football-Teams.com