|Date of birth||13 May 1986|
|Place of birth||Tatakamotonga, Tonga|
|Height||1.88 m (6 ft 2 in)|
|Weight||112 kg (17 st 9 lb)|
|School||Shochi Fukaya High School|
|University||Saitama Institute of Technology|
|Rugby union career|
Loamanu's grandfather Tevita Sitanilei played scrum half for the Tongan national rugby union team, whilst his brother Sitani has played for the Tongan national rugby league team. Loamanu left his native Tonga at the age of 15 to move to Japan on a scholarship. He made his debut for the Japan national rugby union team against Uruguay in April 2005 aged 18 years and 338 days old and became the youngest player of all time to play for Japan (a record since broken by Yoshikazu Fujita). A few days after his second cap against Hong Kong, Loamanu was banned for a year from the Japan team after getting embroiled in a fight involving female professional wrestler Mika Akino in Tokyo's Roppongi nightspot district.
He joined Toshiba Brave Lupus in 2008 and won the Top League with them, but in February 2009 Loamanu tested positive for marijuana and was banned for life from playing rugby in Japan by the JRFU whilst his club Toshiba Brave Lupus withdrew from the All Japan Championship after the incident. In 2011 Japan coach John Kirwan appealed for the ban to be withdrawn before the Rugby World Cup but the request was turned down by the JRFU who said Loamanu "was not suitable to represent Japan".
After being exiled from Japanese rugby, Loamanu moved to Toulon for the 2009/10 season and spent three seasons there. He was released in 2012, and he joined Benetton Treviso after his former coach John Kirwan suggested the move.
In May 2014, Loamanu has signed for English club Leicester Tigers where he will compete in the Aviva Premiership from the 2014-15 season. The Japanese Rugby Union decided to lift his indefinite ban in November 2014.
- "Loamanu the new Williams?". Archived from the original on 24 September 2017. Retrieved 25 June 2013.
- "Tevita Sitanilei".
- "Loamanu shines in historic debut for Japan".
- "Japan / Youngest appearance". Archived from the original on 9 November 2013.
- "Kirwan slams doped-up Loamanu".
- "Loamanu suspended for using pot".
- "Sanyo captures national rugby championship with win over Suntory".
- "Rugby: Kirwan wants banned player". The New Zealand Herald. 9 February 2011.
- "Japan reject Kirwan's plea for Loamanu".
- "Toulon Christian Loamanu à bon port".
- "Leicester Tigers sign Japanese versatile back Christian Loamanu from Benetton Treviso". BBC Sport. 21 May 2014.
- "Loamanu Has JRFU Ban Lifted". rugbynewsjapan.com. 27 November 2014. Retrieved 24 April 2015.
- "Former Japan versatile back Christian Loamanu signs for second division French club Provence". Le Rugby Nistere.fr. 22 June 2016. Retrieved 17 April 2017.