Seymour ran a 4.39 40-yard dash at USC's combine and according to the video below, Seymour has 20 passes defensed, 126 total tackles, and three interceptions in his career with the Trojans.
Scout's USCFootball.com had the following to say on Seymour.
Before being injured, Seymour had been a two-year starter and was only getting better. He had 49 tackles as a junior with an interception, but he made his impact with 13 breakups and 14 pass deflections. As a sophomore, he had 48 tackles, including two for loss, an interception, six breakups and seven pass deflections. The speedy Seymour has great burst, but that was sapped by the knee injury. If fully recovered, Seymour could be a steal that is capable of getting down the field to cover kicks on special teams.
Just like at USC, Seymour will have an opportunity to learn from Nickell Robey while having to cover Robert Woods across the line.