Widnes winger Patrick Ah Van has left the club with immediate effect to take up an offer in rugby union.
The 31-year-old returned to the club in July and played for free to help the club when they were in special measures.
Ah Van will now take up a deal in rugby union and will leave Widnes a legend, having scored 95 tries in 123 appearances for the club.
Widnes chief executive Phil Finney said: “First and foremost, we would like to thank Patrick for his loyal service to Widnes Vikings both in 2019, and across the whole of his time at the club.
“Patrick is someone that carries huge experience and ability, and put his hand up to help the club during the season. There’s no doubt that he has been a massive help to Kieron [Purtill, coach] and the first-team squad throughout his return.
“Pat has been associated with Widnes Vikings for a number of years, and is a highly popular figure around the club, and that is testament to the man and the player that he is.
“On behalf of everyone at the club, we’d like to wish Patrick and his family all the best in their future endeavours.”