Belgium midfielder Kevin De Bruyne has slammed the quality of Bosnia-Herzegovina's Grbavica Stadium playing surface, describing it as "unacceptable".
Speaking to reporters after the game, De Bruyne admitted that he was thankful to avoid joining Fellaini in picking up a problem of his own on the bumpy pitch.
"I was worried I'd get injured," he said. "This was unacceptable. I don't understand how we could play on such a pitch. The last time I played on such a bad pitch was when I was a seven-year-old kid."
Manager Roberto Martinez added: "The pitch in Sarajevo was below any acceptable level. It was impossible to play any tactics."
Belgium have already made certain of top spot in Group A with one match, at home to Cyprus on Tuesday, left to play.