The 37-year-old Brazilian, who won 47 caps for the Selecao, has decided to make the move to MLS and reunite with former coach Gerard Houllier
The Brazilian played under the club's head of global soccer, Gerard Houllier, at Stade de Gerland, and the Frenchman has decided to bring the veteran playmaker to MLS.
And, despite the player's advancing years, sporting director Andy Roxburgh is certain that he will be a success in the USA.
"Juninho is a world-class player who our global sporting director, Gerard Houllier, and I have known and admired for many years," he said in a team-issued release.
"Aside from being a top dead-ball specialist and a tremendous talent, Juninho is a fantastic professional both on and off the field.
"He is in great physical shape, and we think he can make a positive impact for us in 2013."