Clarkson made the switch to York in 2020 from Castleford Tigers and succeeded Tim Spears as Captain the following year.

The back-rower featured in 2021’s 41-34 defeat to Featherstone Rovers in the AB Sundecks 1895 Cup Final at Wembley Stadium and showed his leadership skills when filing in at half-back during September’s historic 26-24 win away to his former club Halifax Panthers in the Betfred Championship Play-Off Qualifiers at The Shay Stadium.

The ex-England Knights international began his career at Leeds Rhinos, with whom he won two Betfred Super League Grand Finals (2011 and 2012), the 2014 Betfred Challenge Cup and the 2012 World Club Challenge.

After a 2015 loan spell at Widnes Vikings, 12 months later, Clarkson joined Hull KR and was part of the Robins side that earned an immediate promotion to the Betfred Super League in 2017.

He made 20 appearances for Castleford during his sole season at the West Yorkshire club in 2019.