Czech Republic midfielder Libor Sionko has agreed a three-year deal with Rangers after leaving Austria Vienna on a free transfer.
Sionko arrives at Edinburgh Airport on Monday
The 29-year-old, who is on standby for the Czech World Cup squad, told the Ibrox club's website: "It is a great privilege to join Rangers.
"I had many offers from a number of top teams but once I learned Rangers were interested my mind was made up.
"I am looking forward to working with Paul Le Guen, he is very experienced."
Sionko is Le Guen's second signing after the recruitment of teenage South African midfielder Dean Furman from Chelsea.
"He (Le Guen) has a great record from his time with Lyon and he is one of the top coaches around," added Sionko.
"It's a great opportunity for me to come to Rangers and I think it could be an exciting time because of the new coach.
"I have seen the facilities at Murray Park (training ground) and I went to Ibrox which is a magnificent stadium. I can only imagine what it is like when it is full of supporters."
Sionko played in the Champions League with Sparta Prague in 2001 - where he scored against Arsenal - and in 2003 where he played against Chelsea.
And he already recognises the crucial role European football plays for Rangers as he prepares for the Uefa Cup next season.
"I really enjoy European football and hopefully Rangers can do well next season," he said.
"I know European football is important to everyone at the club and let's hope we can be successful."