Neymar's return to competitive football for Brazil certainly wasn't great for him.Not only did the Selecao draw 1-1 in their opening World Cup games vs Switzerland, but Neymar was repeatedly targeted by the opposing players and was fouled 10 times.Valon Behrami and Arsenal new boy Stephan Lichtsteiner appeared to have it in for him, with one of the world's great players having little impact on the game as a result.After the draw, there were reports from journalist Miguel Delaney that Neymar was limping through the mixed zone.

However, Neymar said after the game "it's nothing to worry about. I'm fine." Team doctor Rodrigo Lasmar also added he "will be 100 per cent" fit to play Costa Rica on Friday.

They may have spoken a little too soon...

That's because some very worrying reports started doing the rounds on Twitter today suggesting Neymar had in fact limped out of Brazil training.

And it was officially confirmed in video footage that he did have to leave early, with the Paris Saint-Germain superstar picking up a very innocuous injury to his right foot.

You can watch the footage below.

VIDEO

That really doesn't look good for him.

The injury appears to be caused by the impact of the ball, which suggests his foot is certainly not right.

It certainly puts his World Cup participation into doubt, which would be a huge blow to Tite.

Nevertheless, the Selecao manager does have players that can fill in for the mercurial star.

Philippe Coutinho could be pushed further forward or there are more natural replacements in Douglas Costa and Taison.

But, we all want Neymar fit, healthy and leaving his mark on the World Cup once again.