 Aşık was limited to 31 games in 2016–17 due to a bacterial infection that was later diagnosed as Crohn's disease.Aşık missed eight months with the illness and lost 30 pounds as a result.On February 1, 2018, Aşık was traded, along with Jameer Nelson, Tony Allen and a protected first-round pick, to the Chicago Bulls in exchange for Nikola Mirotić and a 2018 second-round pick.