The Red Devils boss said their win over Panama was 'exactly what we wanted' but called for his side to be even better against Tunisia
Belgium head coach Roberto Martinez believes his side need to improve their level of performance at the World Cup, but "should not look for perfection."
The Red Devils began their tournament with a 3-0 win over Panama, but their coach was not fully convinced by their output on the pitch with a game against Tunisia on the horizon.
After a laboured first-half against the unfancied Central Americans, Belgium took the lead through Dries Mertens' superb volley before hitting their stride and adding further goals from Manchester United striker Romelu Lukaku.