Leeds have signed Huddersfield back-rower Alex Mellor on a three-year contract from 2020.
The 24-year-old has made 63 appearances for Huddersfield since joining from Bradford in 2017.
Mellor has been in fine form for the Giants this season, scoring seven tries in 14 appearances as well as currently being ninth in the tackle charts with 94 to his name.
Rhinos director of rugby Kevin Sinfield said: “We are delighted to have secured Alex on a long-term deal with the club.
“He is an exciting young English forward who has developed his game since returning to Super League with the Giants.
“Despite only being 24, he has over 100 senior appearances already and I am sure he will continue to progress within our system.”
Mellor commented: “I am really grateful for the opportunity to join Leeds Rhinos and I can’t wait to get started next season.
“I have had two fantastic years at Huddersfield and I am grateful for everything they have given me.
“Leeds is a great club and, whilst they are having a tough season so far, hopefully I can play my part in helping the team get back to where they belong.
“It is a huge club and I am excited about being part of the process to rebuild the club’s fortunes on the field. I live locally and, whilst I had a couple of offers to move elsewhere, Leeds was always my first choice.”