The 29-year-old Billy Harris may not be a global superstar but in the cutthroat world of professional tennis he is a rarity: a survivor.
From being a promising junior to starting his professional career living in a Ford Transit van, from dreaming of Grand Slam glory to cooking his dinner on a camp stove at the side of the road as he trekked across Europe in search of his first ATP win, he never gave up (he once drove 3,000 miles from Portugal to Poland in pursuit of that elusive victory).
Even when back and groin injuries (sustained when he fell off a treadmill in Thailand) sidelined him for eight months in 2018, he did not quit.