On his return from injury though, it didn't take long for him to make up for lost time as, after coming off the bench to play the final two minutes of a 2-0 win over Heracles Almelo, he scored his first Eredivisie goal, scoring his side's fourth in a 4-2 win over Sparta Rotterdam.
He scored a further two goals in the final three games of the season as he helped Ajax to go on a 23 game unbeaten run to clinch the league title. He also appeared in the Dutch Cup run which also resulted in glory come the end of the season as Ajax defeated Vitesse in Rotterdam.
Despite the highs of that season, his second season in Amsterdam saw Mo endure more injury frustration, restricting him to just four starts across the campaign. However, midway through the year, he did enjoy perhaps one of his greatest moments in professional football - scoring a brace for Ghana against South Korea at the 2022 World Cup finals.
In 2022/23, the forward really showed what he could do in the red and white of Ajax as he had a stunning season at the Johan Cruyff Arena. Finishing as Ajax's top goalscorer, scoring 18 in the campaign while providing seven assists, he was the Sons of Gods main man.
Scoring 11 goals in the league, the forward also bagged four in the Champions League, all coming in the group stage and in four separate games (vs Liverpool (A), Napoli (H) and Rangers (H & A).