Steve Hansen not concerned about Beauden Barrett's kicking

New Zealand head coach Steve Hansen brushed away concerns about Beauden Barrett's form following their 21-24 defeat to British and Irish Lions in the second Test in Wellington on Saturday.

Hampered by a red card to Sonny Bill Williams for a shoulder charge on Anthony Watson, New Zealand were reduced to 14-men early in the game and had a lead until 68th minute before Conor Murray crossed over for the visitors while Owen Farrell slotted a conversion and a penalty to help Lions level the series 1-1.

All of New Zealand's 21 points came from the boot of Barrett, who also missed out on three penalties - something that could have changed the complexion of the game but Hansen played down the criticism.

"I'm not worried about his goal-kicking at all," said Hansen of Barrett, who spurned nine points with the boot.

"Games are won and lost with goal-kicking - but they are also won by players doing a job from one to 23.

"And tonight the Lions did their job better than we did.

"He kicked 100 per cent last time out (in New Zealand's 30-15 first Test win), so no, I'm not concerned."

This was also first defeat for New Zealand at home in nine years and Williams became just the third All Black to be dismissed in Test action, and the first since Colin Meads against Scotland in 1967.

Hansen refused to put all the blame on Williams' red card for the defeat and is hopeful of winning the series as they return to their favourite venue Eden Park for the final game.

"It doesn't make it any easier to swallow," said Hansen, when asked if Williams' red card could account for the defeat.

"Losing sucks, and that's whether you've got 15, 25 or two players. It sucks.

"It was our turn to take it on the chin.

"It's all very well being good and gracious winners; we've got to do the same when we're beaten.

"So we've got to prepare better, work harder and come out to try to win the series next week."