Career
Sieni played for Tofaga Bachelor in the B-Division in 2008, but since 2009-2012 he has played for Tofaga A. Today he has played for Te Atatu AFC club from New Zealand. Katepu is the second goalkeeper of the Tuvalu national football team He made his debut in the match against New Caledonia on September 1, 2011.
Seini played three games at the Pacific games 2011: against New Caledonia, Solomon Islands, and Guam.