Early career After he completed his form three levels of education (
grade 9 in the
U.S.) from St. Edwards Secondary School in
Freetown, Kallon signed with the local club,
Old Edwardians of the
Sierra Leone National Premier League. During the 1993–94 season, he struck fifteen goals in 24 league games for Old Edwardians and became the youngest player to ever play and score in
Sierra Leone National Premier League. After the 1993–94 season, Kallon left Old Edwardians and signed for Lebanese club
Tadamon Sour. Kallon is indeed spotted by Ali Abdullah, while playing a game with friends, on a beach in Freetown. Son of a Lebanese diplomat living in Sierra Leone - Lebanon then already had many businessmen in West Africa - Abdullah praised Kallon's qualities to several relatives, and managed to obtain several trials for him in Lebanon. Eager to discover foreign countries, and pushed by his father, Kallon accepts the offer and travels with Ali Abdullah, only 15 years old. First on the side of Ajman, where the test turns out to be inconclusive, before finally catching the eye of the staff of Tadamon Sour, the club from the city of Tire. Kallon will thus spend the 1994–95 season there, scoring 15 goals in 24 games, despite six difficult first months, due in particular to the cold Lebanese winter. He spent one season with
Spånga in Stockholm, Sweden. He was then signed by
Inter Milan. He was then loaned to
Swiss Super League club
AC Lugano, Serie A club
Bologna and
Cagliari, as well as Serie B club
Genoa. He was farmed to
Reggina and
Vicenza in a
co-ownership deal for an undisclosed fee and 9,000 billion
lire respectively (€4,648,112). He played with
Cristiano Zanetti at Cagliari, whom he later worked with again at Inter Milan.
Inter Milan 2001–02 After the abolition of the non-EU quota for each team halfway through the
2000–01 season, Kallon returned to Italian club
Inter Milan before the start of the
2001–02 season., for a reported 8,500 billion lire transfer fee (€4,389,884). With
Christian Vieri,
Ronaldo,
Álvaro Recoba,
Adriano,
Hakan Şükür and
Nicola Ventola also in the side, Kallon was originally a third or fourth choice striker. But injuries to Ronaldo and Recoba meant that Kallon played 29 Serie A matches, scoring nine goals and becoming the team's second highest scorer of the 2001–02 Serie A season, behind Vieri, as the club narrowly missed out on the league title, finishing in third place, also reaching the semi-finals of the
UEFA Cup.
2002–03 He played nine times scoring five goals in Serie A in
2002–03 season due to injuries in August and February, as the team managed a second-place finish in the league. Kallon returned to the side in May after
Gabriel Batistuta was injured in April. He also played both legs of the
2002–03 UEFA Champions League semi-final against
AC Milan as Batistuta was unable to register. He played in both games as a second-half substitute, for
Álvaro Recoba and
Hernán Crespo respectively.
2003–04 Kallon tested positive for the banned substance
nandrolone after the
Serie A match against
Udinese on 27 September 2003 and was banned from football for eight months. Kallon then struggled to get into the starting eleven during the
2003–04 season, primarily due to the rise of young
Nigerian striker
Obafemi Martins and the return of Brazilian ace
Adriano.
Monaco Kallon signed a four-year contract with Monégasque club
Monaco before the start of the 2004–05 season, as the
UEFA Champions League runners-up had lost
Dado Pršo and
Fernando Morientes. He was impressive during his first season at Monaco, but quickly fell out with French manager
Didier Deschamps, and was relegated to the bench in March 2005. He moved on loan to Saudi club
Al-Ittihad on 29 July 2005. He helped the team win the
2005 AFC Champions League, leading the competition with six goals scored, including goals in each legs of the semi-final and final respectively. He also played at the
2005 FIFA Club World Championship with Al-Ittihad, before returning to Monaco in 2006. He played 12
Ligue 1 matches in his last full season with Monaco during the
2006–07 campaign. He played his last match in league play on 11 August 2007 against
Lorient, the second match of the season, before he was released by Monaco. He underwent a trial with
Birmingham City in September 2007, after previously being linked with
Derby County in July. However, Kallon failed to qualify for a work permit in England, as
Sierra Leone ranked 79th in the
FIFA World Rankings in September 1997, but the requirement was above 70th for non-EU internationals. In November 2007, he signed a pre-contract with
Al Hilal, but this later collapsed.
AEK Athens Kallon signed a six-month contract with Greek club
AEK Athens on 29 January 2008. He played for the capital club in the
UEFA Cup 2007–08 round of 32 against
Getafe, but AEK lost 4–1 on aggregate, with no goals from Kallon. He also played in the
Super League Greece playoffs to determine qualification to European competition. He scored once in his three appearances, and AEK finished second to qualify for
the following year's UEFA Cup. Greek fans remember him especially for an excellent goal against
PAOK in a 4–0 win, when he scored with a chip shot outside the box.
Al-Shaab In August 2008, Kallon signed with
UAE Pro League club
Al-Shaab for the
2008–09 season. He was released from his contract after a few months due to poor performances.
Kallon In October 2009, he signed for his own club Kallon.
Later career On 1 March 2010, he joined the Chinese championship, signing a one-year deal with
Shaanxi Chanba. Kallon made his
CSL debut against
Dalian Shide on 28 March and scored a
penalty kick in 50th minute. He decided to leave after his contract was finished in December to be closer to his family. In 2011, he moved to
India and signed with
I-League club
Chirag United Kerala. He returned to Kallon ahead of the
2012 CAF Confederation Cup, and scored the winning goal that got them to the second round. On 26 June 2014, was named the head coach of Sierra Leone u-17 side. On 22 March 2016, he announced his retirement as a player, having last played in 2014. ==International career==