Cristiano Ronaldo is about to sign the richest contract in football history. In an article by Spanish sport daily newspaper MARCA, Ronaldo is set to sign with Saudi Al Nassr for $217 million-per-year contract and an estimate of $1.28 billion for the duration of the whole contract, where 2.5 years as a player for Al-Nassr FC and the rest in an ambassadorial role as Saudi Arabia bid to organize the World Cup in 2030. Before…