On July 28, 2008, Hassan played the first half as part of a Singapore Selection side in a friendly match against the Brazil Olympics Team and made outstanding saves against Diego and Alexandre Pato's shots, letting in only two goals.
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He has been a regular fixture in the national team, though only as a substitute for Lionel Lewis .
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However, due to his poor performances in the Merdeka Cup in 2007 with the Under-23 team, he was dropped for the friendly against UAE and Jasper Chan was called up in his place.
He was first called up to the Singapore national football team in September 2007 and he has been a regular fixture in the national team since, although only as a substitute behind Lionel Lewis and Hassan Sunny.
It's Always Sunny in Philadelphia | Sunny Day Real Estate | Hassan Nasrallah | King Sunny Adé | Falah Hassan | Sunny | Hassan II of Morocco | Nazia Hassan | Hassan Township, Hennepin County, Minnesota | Hassan Rouhani | Sunny (song) | Sunny and 75 | Nur Hassan Hussein | Miss Spider's Sunny Patch Friends | Joshua Hassan | Hassan Township | Adel Hassan Hamad | Sunny Leone | Shady Deal at Sunny Acres | Richard S. Hassan | Musa Hassan | Mosque-Madrassa of Sultan Hassan | Mohammed Abdullah Hassan | Mehr Hassan | Hassan Sunny | Hassan Fathy | Hassan al-Turabi | Hassan Almrei | Hassan | Basma Hassan |
There were much changes in the Geylang United side with Kim Grant, Noh Rahman, Hassan Sunny and Tong Hai leading the team for a better start for the 2007 S-League season.