Cristiano Ronaldo says his work in Europe is done, but he had "many opportunities" from other clubs before joining Saudi Arabian side Al Nassr.
He joined Al Nassr as a free agent on Friday after leaving Manchester United following a controversial interview in which he criticised the club.
The Portugal captain, 37, said he had offers from clubs in Brazil, Australia, the United States and Portugal.
"I gave my word for this club," he said at his unveiling on Tuesday.
"I won everything, I played for the most important clubs in Europe and now it is a new challenge in Asia."
Ronaldo is reportedly set to receive the biggest football salary in history at more than £177m per year in a deal that runs until 2025.
"As nobody knows, I can say now I had many opportunities in Europe, many clubs in Brazil, Australia, the US, even in Portugal, many clubs tried to sign me," Ronaldo told reporters at his first media conference.