Ku qor sii wadida faqradan - Kadib markii uu ku qancay Daegu, 2018 Júnior wuxuu ku biiray kooxdii hore ee ay xafiiltamaan Ulsan Hyundai si bilaash ah. Wuxuu markii ugu horreysay u saftay kooxda uu hoggaaminayo Kim do-hoon bishii Febraayo 13, 2018, isagoo u soo galay Yohei Toyoda daqiiqadii 76aad ee barbaro 3-3 ah oo ka dhan ah Melbourne Victory ciyaartii ugu horreysay ee heerka kooxaha AFC Champions League. Ciyaartii ugu horeysay ee K League 1
wuxuu ahaa 1da Maarso, markii uu badalay Oh Se-hun daqiiqadii 56-aad ee guuldaradii 2-0 ee Jeonbuk Hyundai Motors.