Robertson opened up about the intensity of training in the Reds' pre-season week in Austria and how hard Klopp is going to make them work.
"I don't think any of us look forward to Austria! It's always when it gets ramped up a little bit, always that wee bit harder and things like that – but it's so important. That's always where the foundations are laid.
"It used to be Evian, now it's Austria and it's the exact same – tough sessions, trying to get us closer to where we need to be for the first game of the season.
"So, all I'm thinking of is by the end of the week we'll be in a lot better position. That's the only way you get through it. But we look forward to it, good team bonding, trying to get through it together, pushing each other, getting fitter together and everything like that.
"It's good, not enjoyable, but always good and we look forward to the hard work. Like I said, by the time we're flying home then we'll be in a lot better place for the season to start."