Berrettini brushes aside Evans to reach Queen's semi-finals
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The top-seeded Italian made light of the day's play being delayed by four hours due to torrential rain and exposed the gap between him and the British number one once he came through a tough first set.
The 25-year-old, ranked ninth in the world and one of 10 Italians in the top 100, broke sixth-seeded Evans to love to go 5-3 up in the second.
He will now play Australian fourth seed Alex de Minaur who defeated 2017 Wimbledon runner-up Marin Cilic 3-6, 6-3, 6-4.
"In the tie-break there were a few points I did not serve well but I played better in the last few points," said Berrettini.
"Then I felt more confident, they were difficult conditions and it took time to get up to speed but I am pretty happy with my performance."
"I came here to win the tournament," he said.
"Obviously I think match by match and I am two steps away.
"I will think about the next one tonight but I am happy with the way I am playing and my mental attitude is really good."
The home crowd will at least have one Briton to cheer on in the semi-finals as Cameron Norrie plays 19-year-old Jack Draper in the quarter-finals.
The winner of that tie will play either Canada's second seed Denis Shapovalov or Frances Tiafoe of the United States.