Doni as a Liverpool player in 2011
|Full name||Doniéber Alexander Marangon|
|Date of birth||22 October 1979|
|Place of birth||Jundiaí, São Paulo, Brazil|
|Height||1.94 m (6 ft 4 in)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 22:19, 1 May 2012 (UTC)
‡ National team caps and goals correct as of 16:46, 15 July 2011 (UTC)
Doni joined Italian Serie A club Roma on 30 August 2005 from Juventude, after Roma paid his buy-out clause of approximately US$18,000. He signed a 1+3 year contract worth €300,000 in gross in the first year.
With Roma, Doni at first was blocked from first team action by Italian u-21 international Gianluca Curci and was restricted to UEFA Cup games. After impressing in Coppa Italia competition, however, he eventually replaced Curci in goal for Serie A games.
His contract was renewed on 13 April 2006, now worth €1.25 million a season (in gross). In his second season with Roma, he became one of the best goalkeepers of the Serie A. He won the Coppa Italia twice in 2007 and 2008, and also finished as the runner-up of Serie A in 2007 and 2008.
In the second half of the 2008–09 season, he lost his place to Artur after a 1–4 loss to Juventus on 21 March. He continued for the next two matches to be named to the matchday squad but was not starting nor available for selection on the substitutes' bench. He then trained separately with injured players and visited the doctor for his knee in April 2009.
In the 2009–10 season, the club continued to use Artur and then Júlio Sérgio as first-choice goalkeeper, despite employed Claudio Ranieri to replace Luciano Spalletti. Doni was recovering from injury. In October 2009, he returned to the team for the match against Milan on 18 October, but soon lost his place again to Júlio Sérgio.
Doni signed for Premier League club Liverpool on 15 July 2011 on free transfer. He was expected to serve as second-choice goalkeeper behind Pepe Reina. As part of the deal, Roma paid Doni €1.5 million net of tax, roughly covering the wage difference between Roma and Liverpool's deal. Due to Reina's red card against Newcastle United in April 2012, Doni won a place in the starting lineup, becoming the first goalkeeper other than Reina to play in a Premier League match for Liverpool since Daniele Padelli on 13 May 2007.
Doni made his Premier League debut for Liverpool on 7 April 2012 in a 1–1 draw against Aston Villa at Anfield. In his next match, on 10 April, he received a red card and conceded a penalty against Blackburn Rovers. He subsequently received a suspension, missing the FA cup semi-final at Wembley v Everton as a consequence . Doni would play his second full competitive 90 minutes in a 1–0 defeat to Fulham at Anfield. Doni made his fourth league appearance on the final day of the season, a 1–0 defeat to Swansea City. In his first season at Anfield, Doni made a total of four appearances. 
In the summer of 2012, new manager Brendan Rodgers allowed Doni to return to Brazil temporarily on personal leave. Although he was still included in Liverpool's squad for the 2012–13 season, Due to this personal leave he missed a chance to start while first choice goalkeeper Pepe Reina was injured; Brad Jones played instead.
It was finally announced, upon leaving Liverpool, that Doni had suffered a heart attack during a routine medical in the summer of 2012. Doni explained that he was unconscious for 25 seconds and almost died. He was advised by professionals to never play football again.
On 31 January 2013, Doni joined Brazilian side Botafogo-SP (the club he started his career with) from Liverpool after not featuring in the team's starting XI since the final day of the 2011–12 season. On 12 August 2013, he retired from playing football due to heart problems.
At the 2007 Copa América, he was selected as Brazil's first-choice goalkeeper moments before their first match against Mexico, replacing Helton. His play in the tournament included two penalty saves in penalty kicks against Uruguay in the semi-finals, which sent Brazil to the final. Brazil won the tournament with a 3–0 win over Argentina.
He retired from international football on 1 February 2013 due to his previous cardiac problems.
- As of 1 May 2012.
|A.S. Roma Total||149||0||13||0||–||–||37||0||199||0|
- Copa do Brasil (1): 2002
- "List of Players under Written Contract Registered Between 01/07/2011 and 31/07/2011" (PDF). The Football Association. p. 19. Retrieved 2 September 2013.
- "Doni aspetta Ronaldo e Kakà "Il Brasile? Meglio vivere qui"". La Gazzetta dello Sport (in Italian). 30 March 2007. Retrieved 14 March 2011.
- "Roma: Doni in porta Lança alla Reggina Del Vecchio a Lecce". La Gazzetta dello Sport (in Italian). 30 August 2005. Retrieved 14 March 2011.
- "APPROVAZIONE DELLA SITUAZIONE FINANZIARIA MENSILE AL 31 AGOSTO 2005" (PDF) (in Italian). AS Roma. 30 September 2005. Retrieved 21 August 2012.
- "APPROVAZIONE DELLA SITUAZIONE FINANZIARIA MENSILE AL 30 APRILE 2006" (PDF) (in Italian). AS Roma. 31 May 2006. Retrieved 21 August 2012.
- List of goalkeepers by vote in 2006–07 Serie A Archived 21 June 2007 at the Wayback Machine.
- "Keeper Doni extends Roma contract". UEFA.com. 9 May 2008. Archived from the original on 15 January 2016. Retrieved 14 March 2011.
- "PROLUNGATO IL CONTRATTO PER LE PRESTAZIONI SPORTIVE DEL CALCIATORE ALEXANDER MARANGON DONIBIER" (PDF) (in Italian). AS Roma. 9 May 2008. Retrieved 21 August 2012.
- "As Roma-Bologna Calcio : i Convocati". AS Roma (in Italian). 4 April 2009. Archived from the original on 7 April 2009. Retrieved 1 June 2010.
- "Lazio-Roma: i convocati". AS Roma (in Italian). 10 April 2009. Archived from the original on 13 April 2009. Retrieved 1 June 2010.
- "Alexander Doni". AS Roma (in Italian). 29 April 2009. Archived from the original on 2 May 2009. Retrieved 1 June 2010.
- "Reds complete Doni deal". LFC. 15 July 2011. Archived from the original on 17 July 2011.
- "Liverpool sign goalkeeper Alexander Doni from Roma". Guardian. London. 15 July 2011. Retrieved 18 July 2011.
- "RISOLUZIONE CONSENSUALE ANTICIPATA DEL CONTRATTO ECONOMICO PER LE PRESTAZIONI SPORTIVE DEL CALCIATORE DONI" [Early consensual resolution of the economic contract of the sporting performance of the player Doni] (PDF). AS Roma (in Italian). 15 July 2011. Archived from the original (PDF) on 16 July 2011. Retrieved 16 July 2011.
- "Suarez saves Reds". ESPN Soccernet. 7 April 2012. Retrieved 11 April 2012.
- Winter, Henry (10 April 2012). "Andy Carroll and Brad Jones rescue Liverpool against Blackburn Rovers after comedy of errors at Ewood Park". Daily Telegraph. London. Retrieved 11 April 2012.
- BBC Sport – Swansea 1–0 Liverpool
- "Index". BBC News.
- "Liverpool FC: Alexander Doni preparing to return to Anfield". Liverpool Echo. 30 October 2012. Retrieved 11 February 2013.
- "Doni reveals cardiac arrest in Liverpool medical". Goal.com. 1 February 2013. Retrieved 11 February 2013.
- Drayton, John (1 February 2013). "I almost died! Former Liverpool goalkeeper Doni reveals he suffered a heart attack last year". London: Daily Mail. Retrieved 11 February 2013.
- "Doni leaves Liverpool as keeper signs for Brazilian side Botafogo". Daily Mail. London. 31 January 2013. Retrieved 1 February 2013.
- "Ex-Roma 'keeper Doni retires". FootballItalia. 12 August 2013. Retrieved 19 September 2013.
- Doni saves two penalties in Copa América
- Includes Copa do Brasil, Coppa Italia, Supercoppa Italiana and FA Cup
- Includes Copa Libertadores, UEFA Champions League and UEFA Europa League