3 key matchups: Falcons at Jaguars

Falcons FS Ricardo Allen vs. Jaguars QB Blake Bortles: Allen is second on the team with 51 solo tackles, but will be key to providing help on the deep 50-50 passes that Bortles likes to launch. Allen will have to keep the integrity of the zone defenses and not allow any of those deep passes. Bortles, who has thrown 30 touchdowns passes and 13 interceptions, is showing signs of developing into a fine quarterback in his second season. He needs to improve his completion percentage (57.5 percent), but has eight touchdown passes the past two weeks and set a franchise record by throwing 10 in a three-game span.

Falcons MLB Paul Worrilow vs. Jaguars RB Denard Robinson: When T.J. Yeldon went down against the Colts with a knee injury, Robinson, a former quarterback at Michigan, rushed 14 times for 75 yards. Worrilow leads the team with 90 total tackles. He has 61 solo tackles and 29 assisted tackles. The Falcons allow 105.9 yards rushing per game, which is 15th in NFL.

Falcons CB Desmond Trufant vs. Jaguars WR Allen Robinson: Trufant will shadow Robinson, who has 66 catches for 1,084 yards and 12 touchdowns. Trufant's steady play has been one of the few bright spots for the Falcons. He leads the team with nine pass breakups and has an interception and two fumble recoveries.