Donald made his professional Ajax debut under manager Henk ten Cate on 14 February 2007, in the UEFA Cup clash against SV Werder Bremen. In August 2007 he participated in the 1–0 win over PSV Eindhoven to clinch the Johan Cruijff-schaal, his first trophy.
Donald's professional Ajax career began under manager Henk ten Cate on February 14, 2007, in a UEFA Cup match against SV Werder Bremen. He then contributed to Ajax's victory over PSV Eindhoven in August 2007, securing the Johan Cruijff-schaal and his first trophy.