Ronaldo's future at Al Nassr is up in the air after a disappointing season and with his contract set to expire at the end of June

Is it possible Cristiano Ronaldo could play in the upcoming FIFA Club World Cup starting on June 14 in the United States, and potentially face his former club, Real Madrid. The 40-year-old star has hinted about his future with a social media message after scoring in the Al Nassr's 3-2 defeat to Al Fateh on Monday,

Most professional sportspeople are long retired by the age of 40, but Cristiano Ronaldo is weighing up his next challenge.