Saied and Zaki whom both play for Al-Zamalek in the Egyptian Premier League and are expected to join the Blades on trial in the next few weeks.
Blades boss Neil Warnock said: "Ideally I only want people of the right age, ones in the early to mid-20s who have their best years ahead of them.
"That's the best way to safeguard our future and ensure what we are looking to achieve will continue for some considerable time to come.
"We may have to bring in some experienced faces and I'm happy to do that so long as they are of the right calibre."