On 29 June 2017, Chrien moved to Portugal and signed a five-year contract with defending champions Benfica Lisbon.[3] The same year on 20 August, he made his 2017–18 Primeira Liga debut against Belenenses in a 5–0 victory, coming on in the 71st minute of the match.[4] Due to lack of enough playing time, Chrien was linked with a loan move to Croatian clubs Hajduk Split[5] and Osijek.[6]
Chrien spent the 2018–19 season with Santa Clara, who returned to the top division after 15 years of absence.[7]
In January 2020, Chrien signed with Mezőkövesd as a free agent, following low play in Benfica in 2020.[8]