York have signed Liam Harris, Tyler Dupree and Harry Aldous on loan deals.
Half-back Harris, 22, has joined on a season-long loan deal from Hull FC, who have a 24-hour recall option after a month.
Prop Dupree, 19, arrives at the Knights on a one-month loan deal from Leeds.
Forward Aldous, 23, has also linked up with York on a one-month loan contract from Newcastle.
On signing the trio, York coach James Ford commented: “I’m very pleased to be in a position to work with Liam again.
“I’m very confident that if he works hard and keeps his focus he can kick on and be a key player at the top level.
“Tyler comes highly recommended by the Rhinos and I’m fully aware of the strengths and weaknesses of Tyler after seeing him play and train with the England Performance Unit.
“I’m confident that if Harry buys into our culture and attitude towards hard work that he’ll find new levels to his game in our environment.”
The trio are all in contention to play for York at the Summer Bash against Featherstone on Saturday.