He didn't feature at all in their Europa League campaign as the Gers were beaten on penalties in the final by Eintracht Frankfurt but he did play a role in their Scottish Cup triumph over Hearts on Saturday. The Ivorian was replaced in the second-half as they went on to beat Hearts 2-0 after extra time.
On Instagram, Amad posted: "I felt so bad about the loss of my second Europa League final, but today a new page in my career has begun and I thank God for everything… We are the champions."
Prior to his switch, he made one appearance for the Reds in their final Champions League group stage match against Young Boys.
Drogba commented: "The future is YOURS @amaddiallo19 keep your head up and trust God."
Diallo has three years remaining on his current deal with the Reds.