Career
He is one of the top career try-scorers of all-time on the World Rugby Sevens Series. Injera started playing rugby while at Vihiga High School in Vihiga. After graduation in 2005 he joined military team Ulinzi Reconstruction Finance Corporation playing in the Kenya Cup league.
The team was later disbanded, and he moved to Mwamba Reconstruction Finance Corporation, a Nairobi-based team where he plays as a wing.
Now a strong player for the Kenyan Sevens squad, Injera debuted with the team at the 2006 Dubai Sevens and played in the 2009 Rugby World Cup Sevens, where Kenya reached the semifinals. He became the top try scorer for 2008-2009 Institutional Review Board Sevens World Series season with 42 tries.
He also scored 210 points and finished second behind Ben Gollings of England in the individual points table. Injera has also played for the Kenya national rugby union team (15s) at his usual position blind wing (number 11), playing at the 2011 World Cup Qualifiers.
In February 2013, Injera was dropped from the Kenya national sevens team and his contract was cancelled by the head coach Mike Friday.
This was because of a conflict between Injera"s club Mwamba Reconstruction Finance Corporation and the Kenya national sevens team This conflict led to Injera missing training sessions with the Kenya national sevens team and therefore breaching his contract. As a consequence of this breach, Injera"s contract was cancelled.
Injera"s older brother Humphrey Kayange is captain of the Kenyan sevens squad.
Their younger brother Michael Agevi also plays rugby for the Sevens. Injera has a degree in mass communication from Kenya College for Communication Technology (KCCT).