Saudi Arabia has cancelled or postponed several major sporting events following a series of attacks by Yemen's Houthi rebels targeting the kingdom's airports and infrastructure.

The 2027 AFC Asian Cup, scheduled to kick off on January 7 in the Saudi cities of Jeddah, Riyadh, and Al-Khobar, could be pushed back by a year to 2028. Asian Football Confederation President Sheikh Salman bin Ebrahim Al Khalifa said on Thursday that a decision would be made only if necessary.

"We can wait until the end of November," Al Khalifa told reporters in Zurich. "Things can change very quickly for better or worse in the region, and it is a question of seeing what happens."

"If we need to make a decision then we will, but we could move back a year to 2028 if we need to. But at the moment we are monitoring the situation and everything is on schedule," he added.

Three matches in Saudi domestic football were postponed this week, including one involving Al-Nassr. The club's Asian Champions League fixture was delayed by an hour on Monday after Saudi Arabia's Civil Defence reported intercepting a missile fired towards Riyadh.

The Six Kings Slam exhibition tennis tournament, which was set to feature Novak Djokovic, Carlos Alcaraz, and Alexander Zverev, was pushed back to the end of December.

Further explosions have been reported in the Saudi capital, with suspicion again falling on the Houthi rebels.

Australia, one of 24 nations set to compete at the Asian Cup, said this week it was "closely monitoring" the situation in Saudi Arabia.

The Korea Professional Footballers Association expressed "serious concern regarding the safety of all players participating in the Asian Cup." Its president, Lee Keun-ho, said the "ongoing military tensions and security instability in the Middle East are issues that cannot be taken lightly."

"No tournament's value can take precedence over the lives and safety of players and football fans," Lee added.