|Full name||Raymond Koned Kalla Nkongo|
|Date of birth||22 April 1975|
|Place of birth||Douala, Cameroon|
|Height||1.90 m (6 ft 3 in)|
|Playing position||Centre back|
* Senior club appearances and goals counted for the domestic league only.
During 15 years as a professional, Kalla played in five different countries with six different clubs.
Kalla was born in Douala. After starting professionally at Canon Sportif de Yaoundé, he went on to play in four different countries: first Panachaiki F.C. in Greece then Spain's CF Extremadura, where he competed in both major divisions.
In 2002, after Extremadura dropped another category to the third level, Kalla signed with VfL Bochum in Germany– he scored five times in his last season, second-best in the squad – but the club was relegated from the Bundesliga. He also received a three-match ban for anti-doping rules breaching, in late 2003.
Kalla gained 63 caps for Cameroon, and was a participant at three consecutive FIFA World Cups: 1994, 1998 and 2002. In the first he (aged 19) played all the matches and minutes, often being partnered by another youngster, Rigobert Song (18), in an eventual group stage exit.
After the 2002 World Cup, Kalla announced to retire from the national team due to conflicts with the Federation structure, which he accused of poor organization, but eventually changed his mind.
- "Raymond Kalla". BBC Sport. Retrieved 13 July 2012.
- "Kalla goes to Germany". BBC Sport. 26 June 2002. Retrieved 25 February 2012.
- "Kalla gets three game bany". BBC Sport. 15 December 2003. Retrieved 25 February 2012.
- "Cameroon star Kalla retiresy". BBC Sport. 17 September 2002. Retrieved 25 February 2012.
- "Kalla hints at Cameroon returny". BBC Sport. 13 January 2003. Retrieved 25 February 2012.
- "Kalla pulls out of Cup of Nationsy". BBC Sport. 30 January 2006. Retrieved 25 February 2012.