Arizona may have Alex English Jersey lost one of the best defenders in the country after linebacker Scooby Wright left Thursday's game with a knee injury.Wright, a junior whowas the Pac-12 Defensive Player of the Year last season and entered this year as a unanimous preseason All-American selection, was injured in the first quarter against UTSA. It appeared to be a non-contact injury for .MORE: | | He was later caught by cameras sitting on the Jarred Vanderbilt Jersey bench with his left knee wrapped in ice.We're clearly keeping an eye on Scooby Wright and we'll let you know what we know as soon as po sible. #BackThePac (@Pac12Networks) A photo posted by Jill Savage (@savage_jill) on Sep 3, 2015 at 8:02pm PDTLater Thursday night, Bruce Feldman of Fox Sports said this:Rich Rod said Scooby Wright's had some Denver Nuggets Jersey shin splints recently. Said he doesn't think it's an ACL or MCL. Is having an MRI. Bruce Feldman (@BruceFeldmanCFB) One of the nation's most complete Gary Harris Jersey linebackers, Wright rankedin the top five nationally in tackles (163), tackles for lo s (29),sacks (14) and forced fumbles (six). Without Wright in the lineup, UTSA was able to rally from a 14-0 deficit to trail 21-20 at halftime in Tucson.The severity of Wright's injury wasn't immediately known. A significant absence would bea huge blow to the 22nd-ranked Wildcats, who hope to contend for a Pac-12 championship.Here's how it happened:Arizona All-American LB Scooby Wright sidelined with a knee injury in the first half Malik Beasley Jersey against UTSA... Mark Schlabach (@Mark_Schlabach)