Philadelphia rookies Quinyon Mitchell and Cooper DeJean have helped turn a secondary that was a decided weakness last season into a strength headed into the Super Bowl rematch against the Kansas City Chiefs.

Phil Mafah ran for a career high 186 yards and two touchdowns in relief of the injured Will Shipley and Clemson held off No. 12 Notre Dame 31-23 to end a disheartening two-game losing streak Saturday.

3 key takeaways from the state’s football scene -- and a glimpse at what’s to come next week.

Riley Leonard broke loose from a tackler and sprinted to the open for a 44-yard touchdown that highlighted Duke’s tough and physical performance that shocked ninth-ranked Clemson 28-7 in the season opener for both teams.

Clemson is the preseason favorite to win the Atlantic Coast Conference race for the eighth time in nine seasons.

Spencer Rattler threw for 360 yards and two touchdowns and South Carolina beat a top-10 opponent for the second straight week with a 31-30 victory over No. 7 Clemson.

Prince Kollie scored on a blocked punt, Benjamin Morrison returned an interception 96 yards for a touchdown and had another interception to set up another score as Notre Dame earned its second straight win over a ranked opponent, beating No. 5 Clemson 35-14.

Will Shipley scored twice and freshman quarterback Cade Klubnik rallied No. 5 Clemson to a pair of fourth-quarter touchdowns in a 27-21 victory over No. 14 Syracuse.

DJ Uiagalelei threw for one touchdown and ran for another, overcoming a sluggish start in the season opener to lead No. 4 Clemson to a 41-10 victory over Georgia Tech. The Yellow Jackets kept it closer than expected much of the way.

D.

Will Shipley ran for two touchdowns, including the game-winning 21-yard score with 2:53 left, as Clemson rallied past Florida State 30-20 for its 32nd straight victory at Death Valley.

North Carolina State forced D.

Will Shipley ran for two touchdowns and No. 6 Clemson survived a wild finish to escape Georgia Tech with a 14-8 victory over Georgia Tech on Saturday night.

Christopher Smith returned an interception 74 yards for a touchdown and No. 5 Georgia turned in a defensive effort for the ages, toppling third-ranked Clemson 10-3 on Saturday in the opener for both teams.