Montoya is six points behind his team-mate in the title chase and Williams are just three adrift of Ferrari in the constructors' table, but Williams are playing down the prospect of a title challenge.

BBC: Ralf: I can be champion

The bonus point was sealed just before the break when referee Tim Hayes awarded a penalty try for an obstruction by Darren Cave on Ugo Monye and Brown continued the scoring after half-time after winning the chase to a Williams kick.

BBC: Harlequins 42-21 Ulster

"We're going to have a long talk about Mike's future - whether he wants to go to retirement or whether we'll chase a rematch with Williams, " said Tyson's trainer Freddie Roach.

BBC: I'd like to fight him one more time to show it wasn't a fluke