On 10 March 2023, Sarginson left Salford by mutual agreement. However, an official statement from Salford, did not mention anything as to why he left the club.[7]
On 13 March, it was revealed that Sarginson had retired from the sport with immediate effect, to "pursue a new career".[8]
Sarginson was offered a four-year contract by the London Broncos in 2012 but refused to sign the deal. After this he was injured on-and-off for the majority of his time in London and went on to play just 51 times for the capital Super League side, scoring 17 tries. On 18 October 2013, Wigan announced that they had signed the out-of-contract Sarginson for the 2014 and 2015 Super League seasons.[10]
Wigan Warriors
Sarginson's performances for the Wigan side earned him a nomination for Super League's Young Player of the Year for the 2014 season, but he would lose out to Daryl Clark of the Castleford Tigers.
On 29 March 2016, Sarginson announced that he would leave the Super League, and join the National Rugby League club, Gold Coast for the 2017 and 2018 seasons.
He made six appearances for Gold Coast during the 2017 NRL season before suffering a season-ending shoulder injury.[15]
Return to Wigan
On 13 December 2017, the Gold Coast club agreed to release Sarginson who had made few appearances and faced a court case in his time in Australia. Wigan re-signed Sarginson on a two-year deal.[16] On his return he was handed the number 3 shirt vacated by Anthony Gelling.[17]
After starting in the first two matches of the season he missed the next two months with a recurrence of a shoulder injury which restricted his appearances whilst at the Gold Coast. On his return to the team he scored his first try of the season against the Catalans Dragons before missing a months of action with an ankle injury a few weeks later. A try against Hull FC was followed a week later by another injury ruling him out for another month before his return to the side against St Helens. A try against the Castleford Tigers and a brace against St Helens followed as he found some of the form which helped the Wigan club lift the Super League trophy in 2016. After a resounding victory over St Helens he received the news that his younger brother had died, as the Wigan club gathered around him, he decided to play just days later against Wakefield Trinity.[18] After an emotional minutes silence Sarginson helped defeat Wakefield to keep Wigan's unbeaten run going.
Sarginson played in the 2018 Super League Grand Final victory over Warrington at Old Trafford.[19]
Salford Red Devils
Sarginson signed for Salford for the 2020 season, and would have appeared in the 2020 Challenge Cup Final at Wembley had he not tested positive for COVID-19.[20]