Sinckler (24), was something of a surprise call-up for the Lions but will be a key man tonight, propping down at tighthead prop for the side against the Highlanders at Forsyth Barr Stadium.
The big burly prop said yesterday playing for the Lions was a dream come true.
"I’m just taking each day as it comes. I’m really, really looking forward to getting out there," he said.
"It is a bit new to me with the preparation time. We played on Saturday, great result there and now we have to switch our approach to the Highlanders. But we have focused on ourselves, prepare the best we can do, get combinations right.
"Normally on a Saturday you are feeling a bit sore especially if you’ve had a loss. But here you have a game and you’ve just to get on to it. It is a bit weird, you don’t think about it and just get on with it."
Sinckler said scrummaging was different in New Zealand than back home in England, where he played for Harlequins.
"It is a totally different interpretation on the laws down here. In the premiership, every scrum they are looking to getting penalties whereas in Super Rugby they are probably looking to get a shoulder up to get their attack right.
"Or spring a surprise on you. The first four or five scrums are in and out, so you get a bit complacent. So for me it is being a sponge and lapping it up.
"Again this week we are up against a quality scrum in the Highlanders. They went really, really well against the Crusaders so it is going to be a tough test again."
Sinckler, who weighs in at 122kg, likes running with the ball — he was formerly a back — and will make the most of the dry track.
"I started playing rugby when I was 8 or 9. I used to play football but I got into trouble and got sent off all the time. Then my mum was speaking to a friend on the phone and said take him down the rugby club.
"I went down to my local rugby club in full Manchester United kit and fell in love with the game there. I played centre to about 13 ... we all met up at a training session and we had split — forwards and backs.
"I was running away to the backs when the coach dragged me by the collar and said ‘no you are a tighthead prop now’ and just threw me in at the deep end. So I was kind of told I was a tighthead prop from then on."
Sinckler said discipline was an issue with him but a stern talking to from club mates James Horwill and Adam Jones fixed that.
"We played Wasps away last year and I was fuming. We were playing so bad and I probably could have been sent off two or three times.
"But Adam Jones and James Horwill] sat me down and just said ‘look you have got to stop it as it is all about you — that is the way it is coming across’ ... I’m just grateful those sort of guys came out and talked to me. That sort of flicked a switch for me."