|Full name||Marcello Edward Dennis Sampson|
|Date of birth||27 March 1987|
|Place of birth||Cape Town, South Africa|
|Height||1.83 m (6 ft 0 in)|
|Weight||85 kg (13 st 5 lb)|
|School||Wynberg Boys' High School|
|University||University of the Western Cape|
|Rugby union career|
Youth and Varsity Rugby
He started his career with Western Province in underage competitions, playing for them in the Under-19 Provincial Championship in 2006 and the Under-21 Provincial Championship in 2008 and 2009.
Eastern Province Kings
In 2011, he joined the Eastern Province Kings. He made his first class debut during the 2011 Vodacom Cup competition, starting in the Kings' 31–25 victory against the Leopards. He made six starts in total, scoring two tries.
His Currie Cup debut came in the EP Kings' opening day match in the 2011 Currie Cup First Division against SWD Eagles. He had his most prolific season in Kings colours, scoring nine tries in just seven starts, to finish joint fifth in the try scoring charts for the competition. This included a brace of tries in their Round Two match against the Border Bulldogs and a hat-trick in their very next match against the Griffons.
He made nineteen starts during 2012, weighing in with a further eight tries. In addition to playing Super Rugby for the Kings in 2013, he made a further four appearances for the EP Kings in the 2013 Currie Cup First Division season. However, he announced towards the end of the season that he would be leaving the Port Elizabeth-based team.
2013 Southern Kings Super Rugby season
In 2013, he was also named in the Kings squad for the 2013 Super Rugby season. He started eleven of the Kings' games and came on off the bench in another two matches. However, he failed to score any tries during the regular season.
He got his first try in Kings colours during the first leg of the 2013 Super Rugby Promotion/Relegation Play-offs series against the Lions, which was ultimately not enough to help retain Super Rugby status for the Kings.
He joined the Pumas for the 2014 season. He was a member of the Pumas side that won the Vodacom Cup for the first time in 2015, beating Western Province 24–7 in the final. Sampson made six appearances during the season, scoring three tries.
- "SA Rugby Player Profile – Marcello Sampson". South African Rugby Union. Retrieved 1 June 2016.
- "SA Rugby Squad – Western Province : 2009 Vodacom Cup". South African Rugby Union. Retrieved 3 June 2016.
- "Nuwe bloed: Aanstaande seisoen se rekrute van oral". Media24 (in Afrikaans). Die Son. 2 November 2010. Retrieved 2 October 2013.
- "SA Rugby Match Centre – Leopards 25-31 Eastern Province Kings". South African Rugby Union. 4 March 2011. Retrieved 27 July 2016.
- "SA Rugby Match Centre – Eastern Province Kings 28-20 SWD Eagles". South African Rugby Union. 15 July 2011. Retrieved 27 July 2016.
- "SA Rugby Try Scorers – 2011 ABSA Currie Cup First Div". South African Rugby Union. Retrieved 5 May 2016.
- "SA Rugby Match Centre – Border Bulldogs 15-62 Eastern Province Kings". South African Rugby Union. 22 July 2011. Retrieved 27 July 2016.
- "SA Rugby Match Centre – Eastern Province Kings 67-26 Tasol Solar Griffons". South African Rugby Union. 29 July 2011. Retrieved 27 July 2016.
- "SA Rugby Match Centre – Southern Kings 19-26 MTN Lions". South African Rugby Union. 26 July 2013. Retrieved 27 July 2016.
- "Pumas teken 'n King". SupaRugby. 16 October 2013. Retrieved 16 October 2013.
- "Steval Pumas first-time Vodacom Cup champions – Final Review". South African Rugby Union. 31 May 2015. Archived from the original on 9 June 2016. Retrieved 9 June 2016.