Wales let themselves down despite win - Lake

Japan head coach Eddie Jones said it was an opportunity missed to win a first game in Cardiff against Wales.

"That could have been a historic win for us but you've got to be good enough to take advantage of those mistakes," he said.

"We weren't quite good enough and it was certainly a missed opportunity."

Jones said he was proud of his young team but believes they needed to be more clinical.

"If you watch rugby now, once you get in the 22 and if you don't take points from that, that's the difference in the game," said Jones.

"We had three opportunities but we didn't take chances and Wales did. Their points-per-entry was higher than ours."

Jones questioned some aspects of the interpretation of New Zealand referee Paul Williams at the contact area.

"I hope I'm not going to get in trouble for this but there was one penalty for not supporting your weight at the breakdown and it was against us," said Jones.

"Anyone watching that game, can you think there was just one ruck where the supporting player was off his feet?

"That can be the difference between winning and losing.

"I'm not complaining, I'm just saying sometimes you don't get the rub of the green.

"That can happen. You've got to suck it up and get on with it. Actually maybe I am complaining!"

Japan travel to face Jones' former England side at Allianz Stadium at Twickenham next Saturday.