Salmon missed the first month of the 2018 season through injury, once returned he played five-eighth for Parramatta's jersey flegg team.

In Round 22, Salmon started at five-eighth for Parramatta in a 40-4 win over the St. George Illawarra Dragons, ending the game with a try assist and line-break.

[5] Following Parramatta's 44-22 loss against the Cronulla-Sutherland Sharks in Round 13, Salmon was recalled back to the starting side to replace Will Smith against Brisbane.

In Round 14 against Brisbane, Salmon started at five-eighth and set up teammate Reed Mahoney for a second half try as Parramatta won the match 38-10.

[6][7] Salmon spent most of the 2019 season playing for Parramatta's feeder club side the Wentworthville Magpies in the Canterbury Cup NSW competition.

Wentworthville had reached the decider after finishing in 8th position and had won 3 sudden death games in a row to make the final.

Following the game, Salmon took a picture of himself which was later uploaded to social media with the caption "Just a premiership winning weak gutted dog".

[13] On 18 February 2023, Salmon played in Penrith's 12-13 upset loss to St Helens RFC in the 2023 World Club Challenge.

[19] On October 14, 2018, it was reported that Salmon had crashed his white Jeep Cherokee into 3 parked cars before rolling onto its roof, stopping southbound traffic in Miranda in Sydney's south.

The court heard Salmon was checking his phone when his Jeep Cherokee crossed onto the wrong side of the road, hit three parked cars before flipping onto its roof stopping traffic.

The court also heard Salmon had been out clubbing in Cronulla and arrived on home at 3am, slept for 6 hours before waking at 9am to get breakfast and then buy a suit from Westfield Miranda when the crash occurred.