I was always on to the next thing. I didn't celebrate all the little moments in my career that I should have done, I always focused on what was next, how could I do better.

My best games for England were under Eddie Jones. Eddie got the best out of me. He understood that I needed an arm around me, needed my tyres pumped up.

A lot of sportsmen get depression, all sorts of mental health issues. A lot of people retire and you don't hear from them, but I don't want to do that.

I want to do presenting, I love DJing, I love writing but none of it's a guaranteed job so it's still very scary.

You just shouldn't be spending your summer watching TV.

I've got a 20 inch neck, a narrow waist and big bulging thighs so stuff off the rack doesn't fit. It's a nightmare to shop for shirts and trousers that are going to fit, because they'll be tight in one place and all baggy everywhere else.

Someone once told me I looked like Mr Incredible out of 'The Incredibles.'

There's only one Lawrence Dallaglio and there's only one James Haskell.

I love deejaying and got the opportunity to do a music production course online and loved it, but I am about as musically talented as a house brick.

Statistically, there have to be more gay men in rugby than we know about and I would hate for them to be going home from training and feeling depressed or feeling like they need to live a lie.

It is difficult for people across the world to be comfortable with their sexuality. We need more education and awareness.

When I left rugby and bought my first commercial gym membership it was a shock to the system. I went in there and saw people training and thought 'I've got to get out of here and get in a proper gym.'

It must be very daunting being an individual sportsman.

The bottom line is that players have to be responsible for getting themselves in the right frame of mind.

We can't have tech just for the sake of it. To maximise the potential of technology solutions you have to understand how to use them.

We're removal men. It's hard labour. I've come to the conclusion being a forward is probably the worst thing in rugby. Looking at backs, they play kick and laugh, run and clap and we get absolutely flogged.

No self-respecting gym goer skips leg day.

I can't have cinema popcorn because it's all full of sugar, unfortunately. Well, I do have it and I don't have it. I love movie night and there's lots of healthy brands of popcorn nowadays, so it's good as a snack.

The first step to optimising testosterone is eating right. That means cutting out the processed junk food and focusing on high quality proteins, carbs, fats, and an abundance of fruits and vegetables. Don't fall into the 'low fat' eating trap, as this will seriously inhibit your testosterone production.

Unfortunately, there tends to be an easy way of doing things in life and the Haskell way. As a 12-year-old I knocked my front teeth out while chasing a friend in the rain. I'm the type who offers to serve wine at drinks parties and accidentally pours it down one of the guests.

We owe it to players, young and old, to train them thoroughly so that they can take full advantage of the insights that tech offers them. And what is true in sport also applies more widely to business.

I don't think my parents imagined I'd represent England when they first drove me to mini-rugby at Maidenhead. I was only five but mum lied about my age to get me out of the house.

As a rugby player I got into the habit of tackling without thinking. But in MMA you've got to land the right way. You can't flop. You've got to bounce back to your feet. You've got to use your sprawl.

I've always felt Twickenham has a special aura.