The Minnesota Vikings close out the preseason at home on Thursday, playing host to the Tennessee Titans. The Vikings are expected to sit most of their starters, but a number of players will still have something to prove in advance of final roster cuts this weekend. Here are some things to watch:
Matt Cassel: The quarterback hasn't been terribly impressive this preseason, doing his best work in the Vikings' exhibition opener against Houston. Since that game, where Cassel went 12-for-19 for 212 yards, a touchdown and an interception, he has completed just 7 of 18 passes for a total of 57 yards and has been sacked twice. With Christian Ponder likely to sit out, Cassel should get plenty of time to end his preseason on a good note and remind the Vikings why they are paying him $3.7 million this season to back up Ponder.
Cornerback battle: Several position battles still have to be settled on the Vikings' roster, but the competition for the team's final cornerback spot is one of the more prominent ones. Bobby Felder, who spent last season on the practice squad, has had some impressive moments this preseason and might have a shot to unseat Marcus Sherels for a spot on the roster. Felder is bigger and more physical than Sherels, who served as the Vikings' fifth corner last season, and he's been productive enough as a punt returner that it looks like he could unseat Sherels there, too. If Josh Robinson falters in the slot, the Vikings would likely go to whomever wins this spot, so it could be important for them to get it right. Thursday will give them one final look at both players, and unless they wind up keeping six cornerbacks, Thursday's game could play a pivotal role in helping the Vikings decide whether Felder or Sherels stays.
The thin D-line: With Kevin Williams and Sharrif Floyd still sitting out because of knee injuries, and Christian Ballard still away from the team because of personal issues, the Vikings will have plenty of work for their backup defensive tackles on Thursday night. Players such as Anthony McCloud, Chase Baker and Everett Dawkins should play extensively, and if it looks like Ballard's absence will extend into the season, the Vikings might have a roster spot for one of them. None of the players have distinguished themselves during the preseason, but a longer stretch of playing time could lend some more clarity to the situation.
Desmond Bishop: He played 33 snaps on Sunday night in San Francisco, and Bishop should have plenty of time again on Thursday night to prove he should start at weak-side linebacker over Marvin Mitchell. He still had some lapses in pass coverage against the 49ers, but made nine tackles and looked more assertive against the run than he did in the previous game against the Bills, which was Bishop's first in more than a year after a torn hamstring ended his 2012 season after one game.
Final receiver spot: Here's another area where Thursday's game could have plenty to say about who sticks on the roster. Stephen Burton has had an impressive camp, and caught three passes for 67 yards in the Vikings' first preseason game, but Ponder's interception on Sunday night in San Francisco could be attributed at least partially to Burton, who stopped his route and gave Nnamdi Asomugha a clear path to the ball. (Asomugha tipped the ball, and C.J. Spillman made the pick.) In that same game, Joe Webb caught a 3-yard touchdown pass from Ponder, showing what kind of a red-zone threat he could be. It seems unlikely the Vikings would keep six receivers, unless they only went with two quarterbacks, so they might have to decide between two players who spent all of last season on their roster. Another factor here could be the Vikings' impression of Webb as a run blocker; Burton has fared well there in the past, and in the Vikings' offense, a receiver's ability to block downfield for Adrian Peterson will always be important.