Mehdi Ghaedi scored for Kalba in the 59th at the Khalid bin Mohammed Stadium and was on target once again in the 85th minute.
Daniel Bessa also scored for Kalba in the 66th minute.
Kalba’s victory propels the team into the quarterfinals of the tournament.
The UAE President's Cup, or simply the President Cup, is a football tournament between clubs in the UAE Pro League and the UAE First Division League. The winner qualifies for the AFC Champions League.