 During the 2017–18 winter training camp, new manager Florian Kohfeldt praised Aron's competitive spirit.On February 3, 2018, Aron was involved in two goals in Werder Bremen 2–1 win away to Schalke 04 after coming as a substitute, This performance earned him a place in the starting lineup in the DFB-Pokal quarter-final match against Bayer Leverkusen three days later.He scored for 2–0 but Werder Bremen lost 2–4 after extra-time.