Woods and Westwood paired in Akron

Tiger Woods and Lee Westwood go head to head with the world number one spot at stake when the WGC-Bridgestone Invitational starts in Akron, Ohio, on Thursday.

Defending champion Woods – he has won at Firestone on his last four trips and a US Tour record seven times in all – is under threat from both Westwood and Phil Mickelson at the top of the world rankings.