Francis Roig has been part of Rafael Nadal’s coaching staff for 17 years, since 2005, the year in which the Mallorcan’s talent blossomed, winning his first Roland Garros and several Masters 1000, which allowed the Spaniard to finish the season as number 2 in the world behind Roger Federer.In an interview with Javier De Diego for the Radiogaceta program of Radio Nacional de España, Roig spoke about Nadal’s latest physical condition, the upcoming tournaments on cement and clay and the eternal fight with Novak Djokovic.”We did not expect this start to the year that he has had. We all knew about his foot problem, that he had not competed for six months. But after all, he is a player with immense quality, with a huge head and with a desire enormous to improve at 35 ye …