Chambers's return to competition, he finished second at the world indoor championships earlier this year, has received a mixed reception with many former track and field stars outspoken in their criticism of the 30-year-old.
CNN: Drugs cheat Chambers wins Olympic trial
2.
Wakefield is a great testament to the ambition of AIM - the Artificial, Indoor and Mountain Series - to bring skiers and riders from grassroots level through to international competition standard.
BBC: SPORT | Other Sport | Skiing | Wakefield wins half-pipe