Zelalem, who is just 19 years of age and plays as a midfielder, joined Scottish Championship outfit Rangers on loan from Arsenal in the summer of 2015.
Karbassiyoon has spoken highly of the USA Under-23 international and has sung his praises.
“I saw Gedion in a training session, and he was very different from what I am accustomed to seeing, from a typical player in the US,” the Arsenal scout told The Independent.
“Technically he was very, very gifted, he rarely looks like he’s under pressure and always has a way out. I hadn’t seen that in players in the US, his intelligence and awareness were on another level.”
Zelalem has not been a huge success at Rangers so far during his loan spell, but he has shown some encouraging signs of progress.
The teenager certainly has a lot of potential, and it is only a matter of time before he gets to play for the Arsenal first team on a regular basis.
The American youngster is talented and gifted, and in Arsene Wenger, he has a manager who knows how to nurture promising young players.
Perhaps it would be best for Zelalem if he goes on loan to a Championship club next season or to a mid-table team in the Premier League.