Barcelona striker has assured supporters he is fine following his diagnosis with anaemia last week.
The Brazilian was speaking at an event in Thailand during a presentation of some new football boots in conjunction with Nike.
Asked about his health problems and how he was recovering from a recent operation to remove his tonsils, the 21-year-old made it clear everything was going well.
“I feel fine. I’ve improved after the operation and I’ve no problems training. I’m getting better,” he told reporters, before being asked on how he was settling in after his summer arrival.
“I hope it’s going to be a special season. I want to do well and adapt [to the team] really quickly.
“I have great expectations at Barcelona and want to win trophies,” he added.