South Korea are searching for a new opponent for an Oct. 10 friendly date after Tunisia pulled out of the fixture for "internal reasons", the Korea Football Association (KFA) said on Monday.

The Koreans, who booked their place at a ninth straight World Cup finals earlier this month, have a friendly organised against 2018 hosts Russia in Moscow on Oct. 7 and had been due to play the Tunisians three days later in Switzerland.

Local media reported that the KFA were now trying to line up Morocco as a replacement for Tunisia, who are scheduled to play a key World Cup qualifier against Guinea on Oct. 7.