Melbourne Victory 2012–13 season Nabbout signed for
Melbourne Victory's Youth Team for the 2012–13 season on 1 October 2012. Having played in one NYL friendly; a 2-goal man of match performance against
Altona Magic, Nabbout went on to make his senior debut for
Melbourne Victory in an
A-League match against
Brisbane Roar on 13 October 2012 in a 5–0 defeat. On 10 November 2012, Nabbout came off the bench in the 66th minute away against bitter rivals Sydney FC, at the time being 2–0 down, and wrote his name into Victory folklore by scoring a superb 78th-minute goal and then scoring the winning goal in the 91st minute of the game to help Melbourne win the game 3–2. On 17 November 2012, Nabbout earned his first ever start in a home game and scored his first goal in a home game against Central Coast Mariners, a game which ended 2–2. He then signed a three-year senior contract with the Victory. On 7 December 2012, Nabbout made his first full 90 minute appearance for
Melbourne against
Adelaide. For him it was a night to remember, scoring his fourth ever goal with the assistance of
Marco Rojas. The match turned out to be one to forget for Melbourne, losing 2–4. Nabbout made a total of 21 appearances for Melbourne, 2 of them in the final series, logging up a total time of 786 minutes.
2013–14 season Nabbout was granted number 13 for Melbourne, from 26, following
Diogo Ferreira's departure to
Brisbane Roar. Nabbout's second season with Melbourne under new coach
Kevin Muscat saw less game time than under
Ange Postecoglou. Nabbout made a total of 19 appearances for the club, scoring one goal, in Melbourne's one all draw against
Newcastle Jets on 10 January 2014, and gave two goal assists in other matches, logging a total of 462 minutes. His most notable moment of the
2014 AFC Champions League include his contribution to securing Melbourne's second goal in the club's 2–0 victory over champions
Guangzhou Evergrande on 15 April 2014, with teammates
James Troisi the scorer and
Kosta Barbarouses the official assister.
2014–15 season Nabbout made his first league match day appearance starting on the bench for the Melbourne, in the round three clash against rivals
Melbourne City, but was not used. Nabbout made his first competitive appearance in 2014–15 and debut in Cup football, against
Perth Glory in the
FFA Cup quarter finals on 29 October 2014. Nabbout came on as a substitute for
Besart Berisha in the 44th minute following a groin injury, with the game finishing in a 4–2 loss for after extra time. He was released by Melbourne Victory on 23 May 2015.
Malaysia 2016 season It was announced in early December 2015, that Nabbout would sign for
Negeri Sembilan FA in the
Malaysian Premier League for the
2016 Malaysia Premier League season, linking up with former
National Soccer League winning coach
Gary Phillips and several former A-League players. During his stay in Negeri Sembilan, Nabbout emerges as the top scorer of his team with 9 goals in 14 competitive games. Despite his impressive record Nabbout had his contract terminated mid-season as the club wanted to bring in new attacking players.
Newcastle Jets 2016–17 season After half a Season with Negeri Sembilan, Nabbout returned to Australia and joined
Newcastle Jets on 19 July 2016. Nabbout made his Newcastle debut in a 3–1
FFA Cup Loss to his former club
Melbourne Victory in which he played a full game. But he had a slow start to the season with his new club as he didn't manage to score until Round 6. In January Nabbout was awarded the
Professional Footballers Australia Player of the Month and was labeled a strong candidate for the Johnny Warren Medal and was also being talked about as a possible selection in
Ange Postecoglous
Australian squad for the upcoming
2018 FIFA World Cup qualifiers later that year. However that was not to be after a brace against
Melbourne City in a 2–1 win later that month at the
C.ex Coffs International Stadium Nabbout's form dwindled and so did the team, he did not manage to score again that season and all talk of an international debut was gone. In Round 27 that Season against
Sydney FC at the
Sydney Football Stadium which also happened to be the last game of the season, Newcastle were sitting in last place on the
A League ladder heading into the match and they required a win or a draw to avoid the wooden spoon. The Jets started the game off strongly in defence before
Andrew Hoole was brought down in Sydney's box in the 40th minute earning the Jets a penalty. Nabbout stepped up and took the penalty before putting it wide of the right post. Sydney then proceeded to score two second half goals handing the Jets their third wooden spoon in club history, bringing an end to Nabbout's first season with Newcastle. At the annual Newcastle Jets Awards Night later that month, Nabbout won the Jets Golden Boot with eight goals and the
Ray Baartz Medal.
2017–18 season Two days before Nabbout and the
Newcastle Jets played their first match of the 2017–18 pre-season, news was released that
UAE Pro-League side Al-Dhafra had approached Newcastle with a big money transfer offer for Nabbout, However, it was reported that Newcastle refused the offer as the transfer amount was not as high as they wanted. The following day Jets CEO
Lawrie McKinna stated to local media that Newcastle had not received any offer whatsoever or that they would not consider $650,000 AUD for the transfer. McKinna then went on to say that no talks had taken place but Al-Dhafra had expressed interest four weeks earlier and the transfer amount was acceptable. With the transfer talk behind him, Nabbout went on to have his strongest pre-season, scoring 8 goals, including two hat-tricks. He also later stated that he had also set a goal for the season to reach double digits in both goals and assists, a feat he had not achieved in his career. On 27 November, after impressing new coach
Ernie Merrick in the first 9 rounds having scored 4 goals 2 of which were braces in addition to 3 assists, Nabbout signed a two-year contract extension with the Jets keeping him at the club until the completion of the 2019–20 Season. Even after leaving
Newcastle Jets and the
A-League more than a month earlier at the annual 2018 A-League Awards Night; The Dolan Warren Awards, Nabbout Won 'Goal of the Year' for his Outside of the Boot Goal against the
Western Sydney Wanderers in Round 20.
Urawa Red Diamonds 2018 season On 5 March 2018, Nabbout departed
Newcastle Jets to join Japanese club
Urawa Red Diamonds for a reportedly expected $500,000 transfer fee. Nabbout made his Urawa debut in Round 5 of the
2018 J1 League season against
Jubilo Iwata. He was a 70th-minute substitute as Urawa lost 2–1. Nabbout made his starting debut and played a full match for Urawa three days later in Round 3 of the
J.League Cup. After Former
Kashima Antlers and veteran Brazilian Coach
Oswaldo de Oliveira was appointed as the new head coach of Urawa in April, Nabbout was dropped from the matchday squad along with two other foreign players for their match against
Consadole Sapporo which was interim coach
Tsuyoshi Otsuki's last match for the club before Oliveira took over the head coaching position. In Oliveira's debut match as head coach of Urawa, Nabbout was recalled back to the matchday squad in a 1–0 loss against
Kashiwa Reysol. Nabbout started on the bench and was an unused substitute at full time. In Round 12 against
Kawasaki Nabbout made his
J1 League starting debut in a 2–0 win for Urawa. Nabbout set up
Japan striker
Shinzo Koroki for Urawa's second goal of the match before coming off in the 75th minute for
Quenten Martinus, this assist was Nabbout's first assist for Urawa in all competitions.
Return to Melbourne Victory 2019–20 season In July 2019, after scoring one goal in 16 appearances with
Urawa Red Diamonds, Nabbout returned to Australia's
A-League, signing a one-year contract with
Melbourne Victory. On 28 January 2020, he scored the only goal in a shock 1-0 win over the
Kashima Antlers in an AFC Champions League qualifying play-off. This qualified the Victory for the
2020 AFC Champions League where they reached the round of 16.
Melbourne City 2020–21 season It was announced on 1 September that Nabbout would join
Perth Glory FC for the upcoming 2020–21 season set to start in December 2020. He signed a two-year contract with the 2019 finalists. On 23 September, however, it was announced that we will not be joining Perth due to CBA and relocation issues. The next day it was announced that Nabbout joined rivals
Melbourne City on a one-year deal. ==International career==