Romelu Lukaku's injury worries are not too serious according to Everton boss Roberto Martinez.

The Belgian striker hobbled off late in Wednesday night's 2-1 Capital One Cup semi-final first leg win over Manchester City not long after scoring the winner at Goodison Park.

Lukaku hurt his ankle when nodding home Gareth Barry's 78th-minute cross, forcing him off the pitch four minutes later, but Martinez has allayed any fears that the problem is severe.

"Romelu took a knock to his ankle and he will need assessing," said Martinez.

"I don't know if he will be available at the weekend [against Dagenham] & Redbridge but I don't expect anything too serious."

The goal was Lukaku's 19th of the season in all competitions and 12th in his past 12 outings for the Toffees.