DURHAM, N.C. -- Wake Forest and Duke have been getting it done on defense.The instate Atlantic Coast Conference rivals meet Saturday in their league opener, and both have defenses that have been overshadowed by offenses that were at opposite ends of the spectrum during their openers.Neither team allowed a touchdown in opening-game victories, with Wake Forest beating Tulane 7-3 and Duke taking care of North Carolina Central 49-6.The challenge is twofold, Wake Forest coach Dave Clawson said. Weve got to get better (on offense) from Week 1, and weve got a challenging group to do it against.The Demon Deacons (1-0) were strong on defense , allowing Tulane a field goal on its opening drive and nothing else. The 280 total yards they gave up was misleading because they didnt get much relief from an offense that struggled to stay on the field -- especially in the second half, when the offense ran just 26 plays and gained three first downs.Duke (1-0) put up even better numbers against a Championship Subdivision opponent. The Blue Devils gave up just 112 total yards -- the fewest ever surrendered by a David Cutcliffe-coached team -- and both field goals by the Eagles came after Duke turnovers. Central didnt have a drive longer than six plays or 21 yards.But that was against a low-level opponent. The stakes go way up this week, because this earlier-than-usual result will show up in the league standings.You learn quickly the lesson of intensity, Cutcliffe said, so were anxious to see if we practice and play with an ACC intensity.---Some things to know about the Wake Forest-Duke rivalry:- QB CONCERNS: Clawson is sticking with his two-quarterback system , starting junior John Wolford but bringing in sophomore Kendall Hinton. Neither one was particularly sharp in the opener, with Wolford throwing for 79 yards and Hinton rushing for a team-best 24 yards with the games only touchdown. He says their numbers would have been better had the Demon Deacons receivers pulled in some catchable balls against Tulane, adding that the bottom line is, we didnt make those plays and as a result, we were not as productive on offense as we need to be.- KEEP UP WITH JONES: Duke QB Daniel Jones is coming off one of the best debuts in Duke history. He threw for 189 yards and two touchdowns and rushed for another score while amassing a passer rating of 216.51 -- a school single-game record for freshmen.- STREAKY SERIES: Its been Dukes turn to dominate this Tobacco Road rivalry. The Blue Devils have won four straight in the series, including last years 27-21 decision in Winston-Salem, after the Demon Deacons reeled off 12 wins in a row from 2000-11.- CAM CAN, CANT HE? Wake Forest needs to get its best player the ball more often. TE Cam Serigne managed just three catches for 15 yards against Tulane. Serigne entered the season with 100 catches during the past two years, leading the team with 54 in 2014. Maybe facing Duke will help -- he has 11 career receptions and two touchdowns against the Blue Devils, and his only 100-yard game -- a five-catch, 135-yard effort -- came in last years meeting.---Follow Joedy McCreary at http://twitter.com/joedyap. 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WELLINGTON, New Zealand -- Sonny Bill Williams passes for a superstar in this part of the world where rugby holds a rare pre-eminence over all other sports.When he competes in rugby sevens at the Olympics in Rio de Janiero next month its likely his light, which shines brightly in New Zealand, will be eclipsed by stars in sports with a bigger international reach.But few athletes competing in these Olympics could claim to approach Williams versatility and by the end, if rugby sevens has captured a wider audience, Williams likely will be among its most recognized names.When New Zealand Rugby appealed to its high-profile players to compete in sevens at Rio, Williams was one of only two All Blacks to answer the call: the other, Liam Messam, didnt make the final cut.Williams has already to his credit two Rugby World Cup winners medals, has competed at a Rugby League World Cup and also has collected titles in Super Rugby and Australias National Rugby League. He has been, also, the New Zealand professional heavyweight boxing champion.To demonstrate prowess in rugbys three formats -- rugby union, rugby league and rugby sevens -- and to excel also at boxing, even in the face of moderate opposition, proves that Williams is an athlete of rare scope and talent.The magnitude of his profile and popularity should have brought him a windfall in endorsements, yet he rarely promotes anything other than charitable causes. And he has made decisions throughout his career which have come at a cost.As a much younger man he quit a contract in Australian rugby league to play rugby union in France for the Toulon club, which is famous for its lavish salaries. That hardened the view among detractors that he flips from one club or sport to another, pursuing only his own interests.But Williams, who grew up with his parents and four siblings in subsidized housing in the Auckland suburb of Mount Albert, says his career choices have never been based on financial considerations.My manager in my early 20s put me into a bad investment and I was in debt, Williams recently told the New Zealand Herald newspaper. People thought I was living the dream in Toulon but I had to pay $750,000 to get out of my (rugby league) contract.Williams recently signed a three-year deal with New Zealand Rugby in the face of more lucrative offers, mainly to pursue his Olympic ambitions.He was quickly accepted intto the team by veteran coach Gordon Tietjens, who recognized him as an athlete uniquely adapted to the modern sevens game.dddddddddddd In its infancy, sevens was a game populated by sprinters and, even more recently, by players who mixed speed with size.Williams may lack outright pace but his strength, fitness and his ability to pass in tackles makes him ideally adapted to New Zealands current style.From the earliest stages of his career Williams has been pursued by many club, and as a younger player he allowed fame to turn his head. But he says family and his Muslim faith have given him peace and stability.Never in my wildest dreams would that young fella that went to Australia (to play rugby league) be here right now, he told the Herald. I used to be a bit of a scallywag. I did a lot of bad things and went off course but Allah was with me.Williams has shrugged off that past but remains a polarizing figure. He is as much a sporting celebrity as New Zealand has at the moment and he bears that responsibility, the calls for autographs and selfies, with good humor and patience. He is known for random acts of kindness which, if he had his way, would go unpublicized.But some still doubt his commitment to rugby and even question his ability.While he has often insisted as a clause of his contract the right to continue his boxing career, his feats in the ring havent won widespread credibility.Some think he has trifled with the All Blacks jersey, wearing it for the first time in 2010, giving it up after the 2011 World Cup, then returning just in time to play in the 2015 World Cup. He also once rejected selection in the New Zealand rugby league team only to have a change of heart and be reinstated at the expense of another player.Some see those decisions as signs of capriciousness and self-interest. In fact, they seem consequences of his talent and desire to please: when he returned from rugby union to rugby league in 2012 he did so to honor a handshake agreement made many years before.Now Williams has the chance to display his talent on a much wider stage. It is an opportunity made sweeter by the fact his sister, Niall, has been chosen for the New Zealand womens teams, meaning two of the four Williams siblings will be in Rio together. ' ' '