The Italy striker suffered ligament damage in January but remains on course to return to action before the end of Fiorentina's season.
It was initially feared that the 27-year-old forward had no chance of traveling to Brazil after suffering ligament damage in the Viola's Serie A clash with Livorno in January.
But it was then announced that Rossi should be fit to return to action before the end of the season. Although Fiorentina says that no date has been set for his comeback, the Azzurri ace's rehabilitation is on schedule.
"Giuseppe Rossi was accompanied by (physio) Luke Bongiorno to Vail, Colorado [on Friday] for a check-up with Professor Richard Steadman," read a statement on his club's official website. "The tests carried out confirmed that the striker is making good progress in his recovery. Over the coming days a date will be set for Rossi to return to Italy."
Rossi, who ruptured his anterior cruciate ligament twice during his career, scored 14 goals in 18 games this season before his latest injury.