However, Witsel insists that the 23-year-old remains an integral part of what the Red Devils are trying to achieve at the tournament.
"We all trust in Eden. Everyone knows his great qualities," he is quoted as saying by Goal.com.
"He wants to make a difference all the time and I'm sure we will see the great Eden Hazard. He can still be decisive."
Belgium return to action tonight when they play the USA in the last 16.