Ruben Ramirez-Hidalgo is an intruiging player. A complete nobody who near the age of 30 worked himself up to be a competitive claycourter (2006-2007), beating Ferrer at RG, leading Federer 5-1 in the final set in Masters Series tournament.
His playing style is also of interest, he is the most technically pure moonballer on the tour
miles ahead of Nadal in esthetic terms, complete with a never-failing trademark grunt. A legend.