Career
Born in Dakar, Diamanka began his career with local United States Goréest In February 2010 he joined Spanish club Rayo Vallecano, being assigned to the reserves in Tercera División and being a regular in his first full season, starting in 23 games and completing 20 as the Madrid outskirts team retained its Segunda División B status. On 13 June 2011 Diamanka renewed his contract with Rayo, with a €6 million buyout clause, also being promoted to the main squad for the 2011-2012 campaign.
He spent several months sidelined because of bureaucratic problems.
On 23 August he moved on a season-long loan to Norway"s Vålerenga Fotball, with the option for a permanent deal. After being released by Rayo, Diamanka moved to Salamanca Air Corps but, after the club failed to play in any division, he joined Sestao River Club on 26 August 2013.
On 18 July of the following year he signed for Civil Defense Leganés, newly promoted to Segunda División. Diamanka scored his first professional goal on 21 September 2014, netting his team"s first in a 2–2 home draw against Racing de Santander.
On 29 June 2015 he terminated his link, and signed a three-year deal with Real Zaragoza also in the second level
Diamanka represented Senegal at various youth levels. In August 2011 he was called up by the senior team for a friendly with Morocco in Dakar, but eventually did not make his debut.