Ronaldo started not feeling well after the match brazil have had against Croatia. I initially thought it was just a pretext, in order to justify his poor performance, bu t it seems I was wrong.

The CBF said on its website that the Real Madrid player started feeling unwell on Wednesday evening after the Brazilians had returned to their Konigstein base after the 1-0 win over Croatia in Berlin.

The Brazilian medical team whisked him off to a Frankfurt hospital, but he returned to join the squad after medical tests cleared him and he was expected to train normally on Thursday.

Source: WCoffsite