The Brazilian has been sidelined for the past three games with a knee injury, but it was predicted that he could return on Wednesday.

However, the forward has not recovered in time from his setback and he has not made the travelling squad for the European tie.

Arsenal are in sparkling form at the moment with five wins on the bounce. They have scored a stunning 21 goals in this period.

They will go into the first leg of the round of 16 tie as favourites, but there is still the pressure of expectations on the club's shoulders.

The Gunners have not won at the Estadio do Dragao in their last three attempts with one draw and a couple of defeats.

They will be aiming to end the streak tomorrow. Leandro Trossard looks set to lead the line with Jesus unavailable once more.

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