Jevons had to have half of a leg amputated recently, after suffering bone cancer.
He played rugby league for the Valley Cougars as well as rugby union for Treharris Phoenix.
A special dual-code match between the teams took place at the weekend as part of the fundraising effort for the player.
Scorpions tangle with Newcastle Thunder in League 1 this Sunday at Mountain Ash RFC.
The funds raised will be used to obtain a prosthetic leg for Jevons.
“We’re delighted to be helping Jordan in this way,” said Scorpions coach Mike Grady.
“As it’s our last game of the season, hopefully we’ll have a decent crowd so can I plead everyone to buy in advance so we can donate a lot of money to help Jordan.”