England star Sam Underhill picks his all-time dream back-row

He was born in Dayton, Ohio, played twice for Gloucester before crossing the Severn Bridge to play for Ospreys while studying at Cardiff University. He switched to Bath on a three-year deal in 2017.

Underhill featured on the bench for the first three games of the 2018 Six Nations, and took part in the November internationals.

He has become a regular under head coach Eddie Jones and was part of the squad that reached the 2019 Rugby World Cup final.

Collins won 48 caps for the All Blacks having made his debut in 2001, scoring five tries during a career that saw him become one of the most feared back-row players on the pitch due to his sheer strength and physicality.

He was considered to be one of hardest tacklers in rugby history, along with Brian Lima

DID YOU KNOW? Collins was a cousin of former All Blacks captain and Hurricanes teammate Tana Umaga

A former captain of the All Blacks and generally recognised as one of the greatest all-time flankers, McCaw had the size and strength to be a punishing defender and the cool head and quick hands required to master the breakdown area.

He became the first All Black to reach 100 Tests in 2011 and captain a century of tests in 2014. He won World Rugby Player of the Year a record three times (2006, 2009, and 2010).

Did you know? McCaw's great-great-grandfather immigrated to New Zealand from the Scottish Borders in 1893

Widely rated as one of the world’s best-ever back row forwards, he was a key member of England’s World Cup-winning squad in Australia in 2003 and the only player to play in every minute of the memorable campaign.

Dallaglio also featured on three British and Irish Lions tours and was inducted into the World Rugby Hall of Fame in 2016.

At domestic level, the number 8 was a one-club man with Wasps, picking up five Aviva Premiership titles along the way, as well as three Anglo-Welsh Cups and two European Rugby Champions Cups in his 18-year career.

Did you know? He is one of a very small number of players to have won both the Rugby World Cup and Sevens World Cup.