After going undrafted in the 2015 NBA draft, Dukan joined the Sacramento Kings for the 2015 NBA Summer League.[6] On 22 July 2015, he signed with the Kings.[7] On 13 November 2015, he made his professional debut with the Reno Bighorns in a 123–121 loss to the Los Angeles D-Fenders, scoring 14 points in 34 minutes of action as a starter.[8] During his rookie season, he received multiple assignments to the Bighorns, the Kings' D-League affiliate.[9] In the Kings' season finale on 13 April 2016, he made his long-awaited NBA debut. In 24 minutes off the bench, he recorded six points, four rebounds, one assist and one steal in a 116–81 loss to the Houston Rockets.[10] On 4 July 2016, he was waived by the Kings.[11]
Cedevita Zagreb (2016–2017)
On 3 August 2016, Dukan signed a three-year deal with the Croatian team Cedevita Zagreb.[12] Dukan left the team in January, 2017 in a mutual termination of his contract.[13]
On August 22, 2018, Dukan was selected by the Capital City Go-Go of the G League in the 2018 expansion draft.[17] However, he was not added to their training camp roster.[18] Instead, he was added to the Westchester Knicks training camp roster[19] but did not make the final roster. Dukan ultimately landed with the Oklahoma City Blue in November, but was waived after three games. He signed with the Capital City Go-Go in January 2019.
2019–20 season
On July 19, 2019, Dukan signed a one-year deal with Spanish club Movistar Estudiantes.[20] He averaged 4.7 points and 1.8 rebounds per game in ACB play.[21]
2020–21 season
On August 8, 2020, Dukan signed with TAU Castelló of the LEB Oro.[21] He averaged 6.9 points and 2.4 rebounds per game.[22]
His father, Ivica Dukan, played basketball professionally in Europe for 15 years and is now an international basketball scout for the Chicago Bulls.[24]