Qatar SC beat Serbian side FK Dobanovic 2-0 in their final pre-season friendly.
After the first half ended without a goal, Qatar SC's Osama Omri found the net twice late in the second half.
The club will return to Doha on Wednesday and continue with their training sessions ahead of the start of the new season.
Qatar SC's stay in Serbia served coach Abdullah Mubaraq's eagerness to get the players in top physical condition.
Hassan Ansari, Sports Director of the club, thanked the Qatari ambassador H E Sheikh Mubaraq Bin Fahd Al Thani for meeting with the team and hosting them.
Qatar SC take on Al Gharafa in the new season's first match on August 4 at the Jassim Bin Hamad Stadium.