Kostas Manolas said Roma have studied Shakhtar Donetsk, but “you can concede a goal at the slightest error” in the Champions League.
The Round of 16 kicks off in Kharkiv at 19.45 GMT.
“We must step on to the field with the conviction we’ll play our game, then we’ll see what happens,” the defender told Roma TV.
“We studied Shakhtar Donetsk carefully, we know they are a strong side, but we must play our style of football.
“The Champions League is the best competition to play in, but you have to be completely concentrated, because you can concede a goal at the slightest error.”
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