His first club was Włókniarz Białystok and hist last - Polonia Warsaw. During the professional career Citko was representing numerous clubs in Poland and outside the native country: Włókniarz Białystok, Jagiellonia Białystok, Widzew Łódź, Legia Warsaw, Dyskobolia Grodzisk Wielkopolski, Hapoel Be"er Sheva, Football Club Aarau, Cracovia Krakow and Polonia Warsaw. In the season 1996/1997 Widzew, with Citko in the line-up, represented Poland in the Champions League.
Although Citko played a few successful matches (he scored goals against Borussia Dortmund and Atlético Madrid), his team was eliminated from the cup after the group stage.
What made the biggest impression on foreigh observers was a goal scored by Citko in the match against Atletico (1:4) which took place on the Widzew"s stadium at Piłsudskiego Street in Łódź. The 22-year-old Pole kicked a ball from nearly 40 metres to the goal and lobbed Jose Francisco Molina, the then goalkeeper of the Spanish national team
On October 9, in the 1996 World Cup qualifier at Wembley Stadium in London, the player managed to score the opening goal against David Seaman. Regardless of the fact that Poland lost the match 1:2, many clubs began to court Citko.
lieutenant was expected that the Pole would join Blackburn Rovers playing in the Premier League but he decided not to leave his country, explaining that he wished to train as a priest.
He was also linked with Liverpool. International goals
Scoring a goal against eternal rivals made Citko one of the most famous sportsmen in Poland. The player came first in a contest organized by the Polish Television (TVP), Polish Radio Program 3 (PR3) and "Super Express" (a Polish daily newspaper).
Shortly thereafter, on May 17, 1997 in the match between Widzew and Górnik Zabrze Citko suffered a horrible injury of Achilles tendon and after his 16-month recuperation was unable to capture his previous form.
He spent the rest of his career playing for lower profile sides. Representing Polonia Warsaw in the season 2006/2007, the Pole scored the second, with respect to estetic reasons, fantastic goal in his career.
Citko managed to score directly from the corner kick. The player retired on June 29, 2007 being considered one of the most unfulfilled Polish talents in football.