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The hosts scored a second midway through the first half when Renan was picked out on the edge of the box by Manolo Gabbiadini's corner before firing the ball into the bottom corner.
After the break the home side continued to dominate and grabbed a fourth goal through Soriano, who worked his way to the edge of the box and drilled a powerful strike across Rafael and into the far corner.
They almost scored again moments later when Sansone burst into the box and flashed a shot narrowly wide of the post.
Sampdoria did manage to score a fifth goal in the 58th minute when Angelo Palombo fired in a low free kick from just outside the box.
Michael Rabusic was the next to try his luck for Verona with a fierce strike from the edge of the area that was pushed away by Junior Costa, but they could not find the net as Sampdoria ran out comfortable winners.