Roberto Martinez labelled Eden Hazard's positive coronavirus test "disappointing" as the Belgium head coach lamented the Real Madrid star's absence.
Hazard will miss Belgium's international friendly against Switzerland on Wednesday and the Nations League showdown with England four days later after contracting Covid-19.
The 29-year-old attacker tested positive prior to Madrid's 4-1 La Liga humbling at the hands of Valencia on Sunday.
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Hazard has featured just 25 times in all competitions for Madrid since arriving from Chelsea for €100 million in June last year, scoring two goals and supplying four assists.