Nevertheless, when the 2010 FIFA World Cup qualification match against Lebanon loomed, he trained with one of his former clubs, Young Lions, to keep his fitness at peak condition to be eligible for a call-up to the national team.

Casmir did not play for most of 2008 due to being clubless, but in August 2008, Malaysian club PDRM FA signed him together with Noh Alam Shah.

In October 2010, Casmir joined Persija Jakarta in the Indonesian Super League where he spent the 2011 season playing for the club.

On 5 December 2011, it was announced that Casmir would be joining the LionsXII team that would be making their debut in the Malaysian Super League for the 2012 season.

In 2006, it was reported that Casmir signed a contract with Indonesian football club Persija Jakarta and that he took a signing-on fee of US$20,000.

[8] It was consequently reported on 19 February 2006 in The Straits Times that Casmir had purportedly been in Canada and had no intention of further pursuing a career in football.

The Football Association of Singapore suspended Casmir from the national squad for a year and fined him S$20,000 for his actions involving Persija Jakarta.