[1] He represented Pakistan in two editions of the Olympic Games (2000 and 2004), and he has served as a full-fledged member and single-time captain of the national field hockey team throughout his sporting career.

[2][3] At the 2004 Summer Olympics in Athens, Nadeem qualified for the second time as a member of the Pakistani squad in the men's field hockey after receiving a wild card invitation from the Olympic Qualifying Tournament in Madrid, Spain.

[4] Narrowly missing out a slot for the semifinals by two points, Nadeem helped the Pakistanis scored a goal of 4–2 to defeat the notorious New Zealand team in the fifth place classification match.

[5] Serving as the team captain in field hockey, Nadeem was also appointed by the Pakistan Olympic Association to carry the Pakistani flag in the opening ceremony.

[6] Shortly after his second Olympics, Nadeem announced his official retirement from international hockey after intense pressures escalated him from the team's fifth-place finish at the concluded Games.