Ferdinand Alfred Sinaga (born 18 September 1988), nicknamed The Dragon, is an Indonesian professional footballer who plays as a forward for Liga Nusantara club Persiba Balikpapan.
[11] On 20 May, in a match against Pelita Bandung Raya, he was involved in an incident with Latvian international, Deniss Romanovs in the 50th minute.
[15] On 10 June, Sinaga scored a spectacular bicycle kick in a 3–1 win over PS Barito Putera.
He was signed for PSM Makassar to play in unofficial league Indonesia Soccer Championship A in the 2016 season.
Sinaga made his first new official league appearance on 16 April 2017, coming on as a substituted Ghozali Siregar in a 3–1 won against Persela Lamongan.
[35] His form in August saw him score three further goals in wins against Mitra Kukar (1–0), Perseru Serui (2–0), and draw against Arema (3–3).
[36][37][38] On 10 September, he scored a brace and also provided an assist for PSM Makassar in a 4–1 home win against PS TNI.
[40] Also continued scored his ninth goal of the season in September in a 5–1 home win against Gresik United five days later.
[43] On 3 January 2018, PSM management through its Media Officer, Widya Syadzwina, confirmed that they had officially released Sinaga.
[45] On 4 January 2018, Sinaga signed a one-year contract with Malaysian Malaysia Super League side Kelantan.
[69] On 16 October, Sinaga scored two goals each with Marc Klok of the season in a 6–2 home win against Arema.
[70] In the last match at Jalak Harupat Stadium on 22 December, Sinaga scored the opening goal as PSM Makassar lose to Persib Bandung 5–2.
[78] The presence of Bojan Hodak who came in to replace the role of last season's coach, Darije Kalezić, he got more minutes to play.
Despite this, Sinaga only played 3 times, scoring one goal and one assist for the club because the league was officially discontinued due to the COVID-19 pandemic.
[79] On 6 March 2021, Sinaga signed a contract with Indonesian Liga 1 club Persib Bandung for 2021 Menpora Cup.
[80] Sinaga made his Persib debut in a pre-season 2021 Menpora Cup against Bali United on 24 March.
[81] And scored his first goal for the club in a 2–1 win over Persiraja Banda Aceh in the Menpora Cup group stage on 2 April.
On 25 June, Persib officially agreed to release Sinaga, he has also submitted a request to play at another Liga 1 club.
[84] On 25 June 2021, Sinaga signed a contract with Indonesian Liga 2 club Persis Solo, he was transferred from Persib Bandung.
[87] On 22 December, Sinaga scored a brace for the club in a 2–0 victory over Persiba Balikpapan, with his two goals, he led Persis Solo to qualify for the 2021–22 Liga 2 semi-final as Group X runner-up.
[89] On 4 January 2022, Sinaga signed a contract with Indonesian Liga 1 club PSM Makassar, on loan from Persis Solo.
[90] He made his league debut on 8 January 2022 in a match against Madura United at the Ngurah Rai Stadium, Denpasar.
[100] Sinaga made his Persebaya debut in a pre-season friendly against 2021–22 league champions Bali United on 28 May 2023, also scored his first goal for the club in a 3–1 win.
Sinaga has played in 2011 Southeast Asian Games where his side lost with a penalty kick against Malaysia in the final.
Among his tattoos are the name of his wife and child, Catholic prayers, Virgin Mary and a Christian cross.