|Full name||Marcelino Elena Sierra|
|Date of birth||26 September 1971|
|Place of birth||Gijón, Spain|
|Height||1.88 m (6 ft 2 in)|
|Playing position||Centre back|
|* Senior club appearances and goals counted for the domestic league only.
Sporting / Mallorca
Marcelino was born in Gijón, Asturias, and began his career at local Sporting de Gijón, where he appeared sporadically with the first team in three seasons before earning a move to RCD Mallorca in January 1996. There, he was instrumental in a promotion to La Liga, forming a formidable partnership with Iván Campo in 1997–98 as the team ranked in fifth position.
In the following season the Balearic Islands club finished third in the league and lost the UEFA Cup Winners' Cup final to S.S. Lazio, with the player appearing in the full 90 minutes in the 1–2 defeat.
In 1999 Marcelino transferred to Newcastle United for £5.8 million, after impressing with Mallorca in Spain and Europe. A lot was expected of him at his new team, but he appeared only 20 times (all competitions) for the club in the first year and a half, being placed with the reserve team for the rest of his spell and finally reaching an agreement to leave in January 2003, having not featured for the main squad since 11 February 2001, against Charlton Athletic.
Marcelino also suffered several different injuries during his time with the Magpies, which stuttered his career there. Scans on the affected areas were occasionally declared to be inconclusive, the most serious of his injuries being a snapped finger tendon which prevented him from playing for two months.
After one 1/2 seasons in Segunda División with Polideportivo Ejido, Marcelino retired. He subsequently spent two years as Everton's Spanish scout, and also worked as a football commentator for RTVE's Premier League matches. He moved on to work as a football agent.
Marcelino received five caps for Spain in a seven-month period, the first coming against Italy in Salerno on 18 November 1998. He would play his last international in an UEFA Euro 2000 qualifier routing of San Marino (9–0 home win, 90 minutes played).
- "El Mallorca pierde con orgullo" [Mallorca loses proudly] (in Spanish). El País. 20 May 1999. Retrieved 28 January 2016.
- "Clinical Charlton too hot for Newcastle". BBC Sport. 11 February 2001. Retrieved 16 February 2013.
- Never again...; BBC Sport, 1 April 2003
- Buyers beware – costly flops are everywhere; The Guardian, 23 August 2005
- Marcelino frustrates Newcastle; The Independent, 8 November 2000
- "Marcelino, de la Premier a Segunda" [Marcelino, from Premier to Segunda] (in Spanish). Mundo Deportivo. 30 January 2003. Retrieved 15 December 2014.
- "Notable alto" [B Plus] (in Spanish). Mundo Deportivo. 19 November 1998. Retrieved 22 May 2013.