Italy coach Conor O'Shea was far from impressed with his side's performance in their Rugby World Cup Group B opener against Namibia despite the 47-22 victory.

Italy scored seven tries at the Hanazono Rugby Stadium but will need to raise their standards with games against South Africa and New Zealand to come.

O'Shea said: "We'll have to move on from that pretty quickly. It wasn't very pretty. There was too many errors in it and it was difficult conditions at times in the second half, which doesn't excuse it.

"We're disappointed with the way we played. We have a job to do in these first two games and you know that's not the true version of us, but we'll improve massively by the time we come to Thursday."

Italy face Canada on Thursday and O'Shea is keen to switch focus to that game.

He added: "It's a quick turnaround and you make lots of changes when you have the game in the bag that sometimes you shouldn't but you lose the continuity you might have started to build up.

"We just didn't get the pace into the game that we wanted. It was difficult out there and credit to Namibia anyway, but we'll take five points and we'll move on quickly."

Namibia coach Phil Davies was delighted with his side's performance as they ran in three tries in defeat.

He said: "I'm very proud of the players, the way we adapted to the speed of the game, some of the tries we scored and some of the resolute defence.

"You know I was really happy, but credit to Italy, you know, they put a bit of pressure on and scored at crucial times and they deserve the win."