Christiansen with Germany U21 in 2016
|Date of birth||25 September 1996|
|Place of birth||Flensburg, Germany|
|Height||1.88 m (6 ft 2 in)|
|2015–2018||FC Ingolstadt II||8||(1)|
* Senior club appearances and goals counted for the domestic league only and correct as of 1 August 2020|
‡ National team caps and goals correct as of 14:21, 11 July 2019 (UTC)
A Flensburg native, Christiansen started playing football with local sides SV Adelby and Flensburg 08. In 2010, at the age of 13, he moved to the youth ranks of Holstein Kiel where he stayed only one year, though. He joined the football academy of Hansa Rostock, this included attending a private school.
Subsequently, he made his way through Rostock's youth teams and eventually got promoted to the first team, playing then in 3. Liga. He debuted on 29 March 2014 in a home match against Stuttgarter Kickers, playing 80 minutes as a starter. In the following Christiansen became a regular and attracted the attention of several top- and second-flight clubs. In the next winter break, 2014–15, Rostock faced massive financial difficulties and had to acquire income through selling players. Christiansen moved to 2. Bundesliga club FC Ingolstadt for a transfer fee of believed to be €500,000 and signed a three-and-a-half-year contract until 2018.
- "Max Christiansen" (in German). kicker.de. Retrieved 17 November 2015.
- "Neue Herausforderung" [New Challenge] (in German). shz.de. 1 July 2011. Archived from the original on 17 November 2015.
- "Anlaufzeit? Nicht mit Jakobs und Edwini-Bonsu" [Warm-up-time? Not with Jakobs and Edwini-Bonsu] (in German). kicker.de. Retrieved 17 November 2015.
- "Max Christiansen: Ein Rostocker Rohdiamant" [Max Christiansen: Rostock's Rough Diamant] (in German). liga3-online.de. 4 September 2014. Archived from the original on 8 September 2014.
- "Christiansen und Blacha: Hansa geht ans Tafelsilber" [Christiansen und Blacha: Hansa is selling off the family silver] (in German). ndr.de. 9 January 2015. Archived from the original on 11 January 2015.
- "FCInternational: Nyland in EM-Quali-Playoffs" [FCInternational: Nyland in European Qualifier Playoffs] (in German). fcingolstadt.de. 13 October 2015. Archived from the original on 4 March 2016. Retrieved 17 November 2015.
- "Max Christiansen - Spielerprofil -". DFB Datencenter (in German). Retrieved 11 July 2019.
- "Neymar's golden penalty sees Brazil to victory". fifa.com. 20 August 2016.