LONDON (AFP) - Ravi Bopara is confident his medium-pace bowling will be a potent weapon in next year's Twenty20 World Cup in Sri Lanka. The Essex all-rounder took an England best-ever 4-10 in the first Twenty20 international against the West Indies at the Oval on Friday and thinks there is more to come. Bopara's bowling helped England to a crushing 10-wicket win, leaving the West Indies attempting to rebuild their confidence ahead of the second and final game back at the Oval on Sunday (today) . Bopara's bowling has helped him cement his place in England's one-day side and his batting flourished in the recent one-day series against India when he scored a career-best 96 at Lord's.