Rivals return to challenge champion Woffinden

The 23-year-old became Britain’s first World Champion in over a decade earlier this month, but faces a tough task retaining his title as the top 13 riders from the 2013 standings will all return next year.

They include Poland’s Jaroslaw Hampel, who pushed Woffinden all the way this season, and Demark’s Niels-Kristian Iversen who finished third in the standings.

Former world champions Chris Holder and Tomasz Gollob were given permanent wild cards for the year, while Britain's Chris Harris is among the substitute riders.

Rider no - Name - Country

1 - Tai Woffinden - Great Britain

2 - Jaroslaw Hampel - Poland

3 - Niels-Kristian Iversen - Denmark

4 - Greg Hancock - USA

5 - Nicki Pedersen - Denmark

6 - Emil Sayfutdinov - Russia

7 - Matej Zagar - Slovenia

8 - Darcy Ward - Australia

9 - Tomasz Gollob - Poland

10 - Krzysztof Kasprzak - Poland

11 - Fredrik Lindgren - Sweden

12 - Chris Holder - Australia

13 - Andreas Jonsson - Sweden

14 - Kenneth Bjerre - Denmark

15 - Martin Smolinski - Germany

Rider no - Name - Country

19 - Chris Harris - Great Britain

20 - Troy Batchelor - Australia

21 - Michael Jepsen Jensen - Denmark