Smith is widely regarded as one of the next generation of Rugby League stars and is a close friend and team-mate of scrum half Luke Dorn, who signed with London on Monday.
The 21 year old younger brother of Australian Wallaby flanker George Smith, like Dorn, played an integral role in the Roosters championship Premier League team this year. In fact, it was a clever kick from Dorn which sent Smith in for a try in October�s enthralling win over the Dragons.
Smith will not only line up outside his current team-mate, but will also be competing for a place with exciting, outside utility back, Zebastian Lucky Luisi, who has also today agreed to terms (contract pending).
Luisi joined the Broncos for a handful of eye-catching displays at the close of the 2004 Super League season and made an instant impression on the Griffin Park faithful. Both players are destined to continue their promising development paths with London.
Assistant Coach Rohan Smith commented: �It�s going to be an enjoyable process for myself and Tony in helping to bring these players along.
Both have shown they have all the ingredients to go a long way in the game and that�s why they have joined us.�
More players will be announced in the coming days.