US Sassuolo midfielder Alfred Duncan has cautioned AC Fiorentina to be wary of the threat they will pose to them in their Sunday's Italian Serie A clash.

The Neroverdi are not having the best of times in the league after picking just a win in five games.

Despite dominating their last game against Udinese last weekend, coach Roberto De Zerbi's side failed to make it count as they shared the spoils.

Fiorentina will be going into the game on the back of a 3-0 loss against Juventus but Duncan believes their opponent's wound will do little to their ambition to pick maximum points when the two teams clash on Sunday.

"We had a good race. We could not just put the ball inside. Compared to last week we have grown, we have had many chances but we have not been able to materialize. The defeat against Parma has a bit 'conditioned because we did not expect. Fiorentina angry after the knockout with Juventus? We are too. We'll see how it will go."