England batsman Joe Root has said that England's bowlers "leaked too many boundaries" in their nine-wicket defeat to Sri Lanka on Sunday.

Root hit a century as England scored 309 runs, but Lahiru Thirimanne and Kumar Sangakkara scored 139 not out and 117 not out respectively to lead Sri Lanka to victory.

"We couldn't quite create the pressure with the ball that they did," Root told The Mirror.

"We weren't disciplined enough and we leaked too many boundaries. Our bowling unit is quite senior. There's a lot of guys who have played a lot of cricket now and they've had a lot of success so you don't want to tell them how to do their job.

"Unfortunately we didn't create that pressure with the ball and we didn't do anything to make it difficult for them from 10 overs onwards."

England continue their Cricket World Cup campaign against Bangladesh on Monday.