[citation needed] In 2001, he was declared ineligible and was forced to spend the year earning his degree, before transferring to the University of Oregon.

[citation needed] As a senior, he was named a starter in a defensive line that included Igor Olshansky, registering 43 tackles and 2 sacks.

[citation needed] He finished his 2-year career with 58 tackles (8.5 for loss), 2.5 sacks, 3 pass deflections, and one fumble recovery.

[citation needed] In 2006, repeated knee injuries kept Siavii on the physically unable to perform list before he was waived on September 2, 2006.

[10] He played in 14 games (6 starts), while setting a career-high in tackles (30), before being placed on the injured reserve list with a bruised spinal cord injury on December 23.

[14] While awaiting trial at United States Penitentiary, Leavenworth, on January 13, 2022, Siavii was found unresponsive in his cell.