Alistair Pingram was injured whilst playing hockey for the Navy in 1998, pulling bi-lateral ligaments in both ankles. Pingram then spent nine weeks having his ankles restructured in Selly Oak Hospital, Birmingham. This consisted of drilling holes into his ankles, which has since caused arthritis in both legs. Pingram’s cartilage has now started to wear away with the bones beginning to rub together, reducing his height by 6cm since 2000. He joined other Invictus hopefuls at a week-long training camp in Texas, and has since qualified to represent the British Armed Forces in Wheelchair Basketball.