Voronov withdrew from the 2005 World Junior Championships after the qualifying round due to an injury which kept him off the ice for three months.
He had placed sixth in the qualifying round.

Voronov withdrew from the 2007 Skate Canada International before the event due to a recurring foot injury.
He placed fourth in the free skate at the 2008 World Championships and finished 7th overall.
Voronov withdrew from the 2005 World Junior Championships after the qualifying round due to an injury which kept him off the ice for three months. He had placed sixth in the qualifying round.
Voronov withdrew from the 2007 Skate Canada International before the event due to a recurring foot injury. He placed fourth in the free skate at the 2008 World Championships and finished 7th overall.
Sergei Voronov (figure skater)