Glen Driscoll followed Brendan Rodgers in making the move from Swansea City to Liverpool in the summer of 2012 to become the club's head of performance.
Having obtained a sports science degree at Teeside University in addition to a physiotherapy degree from the University of East London, Glen began his career in football at Reading in 2000.
It was there Glen first crossed paths with Rodgers at youth-team level before he joined Chelsea in 2003, working within the Academy and reserve setup.
He was soon elevated into the first-team backroom unit at Stamford Bridge, and during his 10-year tenure he performed a number of roles under the likes of Jose Mourinho, Avram Grant, Luiz Felipe Scolari, Guus Hiddink and Carlo Ancelotti including head of fitness, head physiotherapist and head of injury prevention .
In 2011, Glen left Chelsea to re-unite with Rodgers at Swansea City - and then followed the manager in joining the Reds a year later.
"My role covers medical science and that's integrated into the practical training methodology Brendan has brought in," he explains.
"I help coordinate the work the science and medical team are doing in line with training philosophy the manager uses.
"Probably my most important role initially is to coordinate and ensure all the excellent work the science, fitness and medical departments have been working on previously efficiently fit in line with our global philosophy - a process and outcome I hope can ultimately create a very exciting future, where Liverpool FC can be at the cutting edge of football, both on and off the field."
Liverpool is the fourth club at which Driscoll and Rodgers have worked together - and he's in no doubt about the impact the manager can have on his players.
He says: "Brendan has a unique gift in motivating the players with his training presence and delivers thought-provoking sessions at an optimal intensity but with incredible variety - they will rarely perform the same drill twice. All this whist fulfilling his detailed tactical and technical objectives.
"There are so many aspects of the setup here that are of the very highest standard. Before I left Chelsea, we felt were at the forefront of applied science and medicine in world football - but the medical and science staff here are second to none.
"I'm genuinely excited as to what can be achieved in us coming together and also to be in a position where I can help the process and integrating this work in line with the new training methodologies."
He adds: "I am very privileged and proud to come to this club.
"There's an aura here at Liverpool that is hard to describe. You immediately get a real sense of class here that feels unique and unrivalled.
"I don't want to play down my previous experiences because I'm so grateful to have worked with the players and managers I have, but this feels special and it's a privilege to be here.
"I'm desperate for this club to have success. It's all I care about and from my perspective I'll do absolutely everything I can in my power to make sure the players are in the best possible condition to achieve that."