Suarez's physical prowess explained
Since February 2011, Liverpool fans have marvelled at the sheer robust physicality of Luis Suarez - but how does a professional sports scientist respond when he watches the Uruguayan in full flow?
Ryland Morgans is the Reds' head of fitness and conditioning, and he's at the very heart of the squad's physical development on a day-to-day basis.
He arrived at Melwood in October 2012 and has earned widespread praise for the way he has worked the players both during last summer and since.
So what does Morgans make of the man who has tormented defensive lines across the country this season with trickery and intuition, but more critically, a relentless determination?
"Luis is a fantastic athlete," he told Liverpoolfc.com. "You never hear of him being injured - and he gets kicked from pillar to post, week in, week out. So the fact that he's always out on the pitch is a fantastic testament to him.
"Physically, he is fantastic. He's got a strong muscular system, which allows him to produce those explosive, repeated bouts of effort. He can recover quickly and do it again within a game and then from game to game."
Morgans' training sessions were labelled 'brutal' by Liverpool skipper Steven Gerrard during the Reds' pre-season tour of Asia and Australia during the summer.
But how does the man who worked for the Wales international side, Fulham and Swansea City before arriving on Merseyside in 2012, ensure the likes of Suarez can constantly produce to the highest level while working under such pressure.
Morgans explained: "For Luis, it's about making sure that, because he loves to train and loves to be out on the grass, we modify and reduce the training load that he is exposed to.
"We do this by making sure that he gets an appropriate recovery from the match. So if we've had a strong game on a Saturday and we don't quite get our recovery right, then that accumulative fatigue will build up over the week and can be taken into the forthcoming match.
"So it's really about making sure that he can get that recovery right, because he's a fantastic athlete and has a large aerobic capacity, so he's able to continue to run for a 90-minute game."