Hull KR signed Matt Parcell on loan from Leeds Rhinos this week and he scored the try that made sure of victory in the derby versus Hull FC.
Leeds Rhinos have brought in Robert Lui and Shaun Lunt, with Tui Lolohea and Matt Parcell leaving Headingley.
Catalans Dragons were thrashed 50-10 by in-form Hull FC, who moved four points clear of the French side in Super League.
Leeds Rhinos continue to struggle near the bottom of Super League and were well beaten on Friday night by leaders St Helens.
Momentum kept changing in a gripping Super League match as London Broncos saw off Hull KR to climb off the foot of the table.
England and Great Britain coach Wayne Bennett was "wrong" to link NRL moves with the prospect of international honours, Robert Elstone said.
New Zealand Warriors great Manu Vatuvei has not played since 2017 and revealed on Wednesday he has a cyst in his brain.
Salford Red Devils eased past Wakefield Trinity at home in Super League on Sunday thanks to Niall Evalds' hat-trick.
After nine months out with a knee injury, Hull KR's Adam Quinlan made up for lost time with the decisive try against Warrington Wolves.
Leeds Rhinos will allow Kallum Watkins to leave at the end of June after the centre signed a long-term deal with Gold Coast Titans.