The host nation's 2-1 win over Colombia in the quarter-final was overshadowed by star man Neymar fracturing a vertebra in his back.

He will miss the rest of the tournament, and Willian could now be doubtful for Wednesday's (AEST) semi-final against Germany in Belo Horizonte.

The Chelsea man has been widely tipped to replace Neymar in Luiz Felipe Scolari's starting line-up.

However, it remains to be seen whether Willian will be able to feature at Estadio Mineirao.

Brazil will also be without suspended captain Thiago Silva when it faces Germany, with a place in the final, against Argentina or Netherlands, at stake.