Speaking to BoyleSports, who offer the latest Champions League betting, Saha said: "Cristiano Ronaldo is an ambassador for football in Saudi Arabia and he has attracted so many high quality and young players out there.
"Ronaldo deserves his new contract because even at his age he has stayed at the top and proved that in the games he has played recently.
"It’s an amazing achievement and he deserves his new deal, he would probably deserve a billion a week for what he has done for football in society.
"He is 40 but he works like he is 25 with his passion, it’s unbelievable. He has a legacy in the Middle East and in the world in general, he deserves the contract more than any other player in the world, no athlete has done that.
"He understands the impact of his name and I really respect what he's done and what he's doing and what he's trying to achieve.
"He still wants to be at his best and what he is doing at his age is incredible, Manchester United have players that are 25 and acting like they’re 40, he is the opposite."