The injuries are bad news for Ahli who have a daunting task on Saturday after being held to a 1-1 draw in Cairo in the first leg.
African Cup of Nations winner Barakat still suffers from a nagging knee problem despite playing the home game and he will fly to Germany to undergo further examinations, Ahli added in statement.
Left-winger Al-Saied will be sidelined for up to one month after tearing ligaments in his left knee, according to the club.
The duo joins a long injury list that includes Emad Al-Nahhas, Osama Hosni, Ahmed Sayed and Gilberto who were hit with different injuries.
Ahli will also miss holding midfielder Mohamed Shawki who serves an automatic one-match suspension while Hossam Ashour is doubtful due to an ankle sprain.
The Egyptians eye clinching the title for the second successive year and tying the all-time record of five titles, registered by their Cairo rivals Zamalek.