London Broncos have signed Hull FC hooker James Cunningham and Wigan Warriors prop James Greenwood on loan for the 2014 Super League campaign.
Cunningham, 19, came through the Hull FC academy and made his Super League debut for the club in 2012.
Hull have the opportunity to recall him at a month's notice if required.
Greenwood, 22, made two appearances for Wigan last season and also featured for South Wales Scorpions on dual-registration terms.
He scored 11 tries in 25 appearances for the Scorpions during two seasons with the Championship One side.
Hull FC head coach Lee Radford and Wigan Warriors counterpart Shaun Wane welcomed the opportunity for their players to get regular first-team experience.
"James has applied himself well in pre-season and was rewarded with a couple of pre-season matches and he played well," Radford said of Cunningham.
"Now he has the chance to join up with the Broncos squad and push himself even further.
"It will also be a good move for him personally as a young lad moving away from home for the first time and adapting to a new environment."
Wane added on Greenwood: "This will give him the chance to play regularly in Super League with London and it will also offer him some stability off the field, knowing he is with the Broncos for the whole year.
"This agreement for the 2014 campaign works well for both parties.
"The Broncos will get a determined young player who is keen to impress and he will come back to us in 2015 hopefully an even better player."