[4] In 2019, Kershaw made his Super League début for Trinity against the Leeds Rhinos.

[5] Kershaw played 17 matches for Wakefield Trinity in the Super League XXVIII season as the club finished bottom of the table and were relegated to the RFL Championship which ended their 24-year stay in the top flight.

[6] In early February, it was reported that Kershaw was training with Leeds however he was not part of their squad.

[8] In round 1 of the 2024 Super League season, Kershaw made his club debut for London in their 40-4 loss against St Helens.

[10] In November 2024, Hull Kingston Rovers confirmed that Kershaw would remain in Super League for 2025 after signing with the East Yorkshire club.