As a freshman, he endeared himself to Cougar fans by returning a punt for a touchdown in BYU's 46–45 come-from-behind victory over SMU in the 1980 Holiday Bowl.

[10] That season the Washington Post described Sikahema as "single-handedly swinging the momentum BYU's way" in upsetting undefeated fourth-ranked Air Force.

Upon retiring in 1994, Sikahema was hired by then-CBS owned and operated television station WCAU in Philadelphia to do weekend sports.

Sikahema is an older cousin of fellow Tongan NFL player Deuce Lutui, who played guard for the Arizona Cardinals.

[12] In May 2008, Sikahema accepted an open challenge from former baseball player Jose Canseco to fight him in a celebrity boxing match for $25,000.

Canseco claims to have earned black belts in Kung Fu, Taekwondo, and has experience in Muay Thai, while Sikahema, who grew up wanting to be a professional boxer, had fought 80 amateur bouts while younger.

The Canseco fight was held on 12 July 2008, in Atlantic City at the Bernie Robbins Stadium, and was dubbed The War at The Shore.

[16] Sikahema won by knockout in the first round and donated the $5,000 purse to the family of Sergeant Stephen Liczbinski, a fallen officer of the Philadelphia Police Department.

He was a key figure in the negotiations that led to the city approval of the Philadelphia Pennsylvania Temple, being a personal friend of Mayor Michael Nutter.