The Ivorian spent a year at Celtic before retiring and becoming part of Brendan Rodgers' backroom staff - and the Arsenal Invincible knew it was time to hang up his boots midway through his first season in Glasgow.
The Ibrox legend didn't hold back as he urged Clement to clear the decks this summer after years of failure
It's Scotland's north east against Glasgow's east end as the the Dons look to shock the holders in the first of the last four ties.