Leeds Carnegie hope to sign scrum-half Will Cliff from Premiership Sale Sharks on a dual-registration deal.
Following their relegation to the Championship, Leeds entered into a player-share agreement with Sale.
Leeds head coach Diccon Edwards told BBC Radio Leeds: "We're in negotiations with Sale but a lot is dependent on the Wales World Cup squad.
"We'll be looking to bring him over to add to what we've got and compete with the two scrum-halves we've got."
Leeds and Sale entered into the player-share arrangement in July as part of .
Sale centre Iain Thornley was the first player to swap clubs under the agreement with Cliff now set to follow.
The 22-year-old has made 21 Premiership appearances for Sale since joining from Macclesfield in 2007.
Edwards, who returned to Leeds as head coach at the beginning of June, insisted he was building a squad capable not just of winning promotion back to the Premiership, but also of surviving in the top flight.
"The recruitment and promotion of the young players has indicated the direction the club are looking to go in," Edwards added.
"It's made up of both old and younger players who we feel have the potential or have already demonstrated they're Premiership players.
"We won't be looking to bring in players who we feel are just Championship players.
"We want to develop what we've got and give those players the chance to prove they are Premiership players.
"Obviously the senior players that we have retained have already proved that they can and have the capability of playing in the Premiership, so any players we bring in - either young or senior - will have to be Premiership players."