 He made his club debut on 3 March in the opening match of the MLS season, a 2–0 home defeat to Columbus Crew.Despite suffering from setbacks that saw him on the sidelined, van der Wiel established himself in the starting eleven for the side.He then played in both legs of 2018 CONCACAF Champions League Final against Chivas Guadalajara, as Toronto eventually lost the final 4–2 in a penalty shoot-out after the series was tied 3–3 on aggregate.