Vinciguerra could have developed into a constant top 30 player. With 17 yo he was winning futures. With 18 he reached Bastad final and won Szeczin CH. Then he beat Marat 3x in a row at in 2000 with 19yo winning Copenhagen ATP. He lost to Sampras in three sets at Miami Masters. . A very bad loss to Guga at RG (0-6 0-6 3-6), followed by winning Prostejov CH. Reached Bastad final again losing to Norman. Finished 2000 as almost top50. At 2001 lost to Kafelnikov at R16 AUS open, reached Copenhagen final, After that he satrted losing badly, but he still reached semifinals at Rome masters (d.Grosjean l to Kuerten) and semifinal at Paris (d.Ivanisevic, Safin l to Kafelnikov), reaching his best ranking, 33. After that he was never the same, and he cvould have got room to improve. What happened to him? Was he some kind of irregular player, who could beat top 10 but lose badly many weeks in a row? Did he get tired of tennis after slipping on ranking at 2002. I thiunk he was an enormous talent that have not coped whith tennis agenda or injuries.
The reason for his popularity I think was because he could beat the best players sometimes (like Safin three times in a row or even baby Federer, Wayne Ferreira etc) but eh never became a big player so people still have some hope.