Victor Osimhen trained separately on Monday as Napoli continued their preparation for this weekend’s Serie A clash with Atalanta. Napoli started preparation for the game at their Konami Training Centre on Monday. Osimhen failed to report for international duty last week due to injury. The 25-year-old was an unused substitute in Napoli’s 1-1 draw with Inter Milan before the international break. The reigning Serie A champions have been working hard to get their talismanic striker back on his feet for the visit of Gian Piero Gasperini’s men to the Diego Armando Maradona Stadium on Saturday. Osimh…