After high school football star Kyler Williams died last month in a car crash, Razorbacks coach Bret Bielema retweeted a photo Williams had posted on Twitter three weeks earlier following a tour of Arkansas campus.The photo showed Williams, a receiver from nearby Springdale High, and Bielema at Razorback Stadium. To his retweet, the coach added this message: Prayers and thoughts to Kyler Williams & his family. Couldnt help but stop & get my picture made with this big smile!Then he started worrying about what hed done.I was just going to tweet out to him and his family, and I thought, `Did I just violate an NCAA rule? Bielema said, choking up. It just made me sick. As a human being, you want to say, `Hey.Though Bielema didnt violate any rule, the incident demonstrates how college football coaches appreciate that Twitter allows them to show their personality to fans and recruits alike, while also remaining wary of its potential drawbacks. The issue has crept up recently as coaches struggle to understand a new NCAA rule change that has some of them using their Twitter accounts more than ever.Under the rule change that took effect in August , athletic department staff members are allowed to retweet or show their approval of social media posts made by recruits. The policy change has been nicknamed Click, Dont Type because coaches still arent allowed to add any sort of comment to a recruits post.NCAA spokeswoman Meghan Durham said that generally speaking, a coach cannot tweet or post a photo of himself with a recruit unless the recruit has signed a formal offer of admission or financial aid, or the post would be considered publicity before signing. But, she added, it isnt a violation to do so as a way of paying tribute to a deceased recruit.The purpose of the rules limiting publicity before signing is to prevent a coach from engaging a fan base or boosters to place additional pressure on the prospect to sign at a given school, Durham said.Plenty of coaches use Twitter, whether theyre capitalizing on the new rule or communicating indirectly with fellow coaches.Michigans Jim Harbaugh called out Ohio State athletic director Gene Smith, Georgia coach Kirby Smart and Tennessee coach Butch Jones on Twitter during the offseason for their comments about his decisions to hold spring practice sessions in Florida and to conduct satellite camps.But tweeting also comes with risks that arent limited to concern about NCAA violations.On the day after Notre Dame lost to Michigan State last month, Fighting Irish coach Brian Kellys Twitter account liked a fans post that recommended the firing of defensive coordinator Brian VanGorder. Kelly said later that it was a mistake made by one of the people who help manage his account, though VanGorder actually was fired the following week.I have a number of people that manage my Twitter account, Kelly said at the time. Obviously going through it, somebody unfortunately made a mistake as they were scrolling through, inadvertently hit it.Duke coach David Cutcliffe says he doesnt give anyone else access to his Twitter account for that very reason.North Carolinas Larry Fedora says other people have access to his Twitter account, but all the tweets posted there are his and his alone. He says he makes sure to close out of Twitter whenever he leaves behind his computer or phone.Anytime you open your account and you leave it open for other staff members, you run the risk of something happening, Fedora said. (It may be) something negative (or) something good, but something could happen.It isnt uncommon for multiple people to help out with a coachs Twitter account.Nebraskas Mike Riley says Cornhuskers director of player personnel Ryan Gunderson tweets on his behalf. Gunderson played quarterback for Riley at Oregon State from 2003-07.We talk about the messages and then `Gundy actually does the work, Riley said. Thats our process here. I need a little bit younger guy to help me out with that.Bielema says Arkansas sports information director Patrick Pierson has access to his Twitter account. Jones says a staff member assists in monitoring his account, though all tweets must be approved by the Tennessee coach.Riley said he and Gunderson try to be really careful as to how we represent ourselves all the time, personally and program-wise and university-wise. Jones said he makes sure to proofread before putting anything on his account.We always think in terms of double-checking, triple-checking before you push a button, Jones said.As far as the rule change allowing coaches to like or retweet prospects posts, some coaches are capitalizing on the new policy more than others.If a guy bases his decision on if you like or retweet his posts, that aint the dude that is going to fit in our program, Arizonas Rich Rodriguez said. If thats his most important decision-making process ... I mean, you want to give him attention, but, I mean, what are we, schoolgirls chasing Justin Bieber? Give me a break.---AP Sports Writers Aaron Beard, Joedy McCreary, John Marshall, Eric Olson and Kurt Voigt contributed to this report. Nike Shox Canada Clearance . 8 Iowa State on Saturday, sending the Cyclones to their third consecutive loss. The Longhorns (14-4, 3-2) got their biggest win of the season with their third in the row in the Big 12. 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Nike Shox Canada Online . Then the Pacers gave Oladipo and his Orlando teammates the cold shoulder. Paul Georges buzzer-beating 3-pointer at the end of the third quarter spurred a 21-4 run, finally sending Indiana past the Magic 97-87 in a tougher-than-expected opening night matchup. DALLAS -- Wesley Matthews has taken greater responsibility with Dirk Nowitzki out of the Dallas Mavericks lineup much of this season.Matthews scored 20 of his 26 points in the second half of Dallas 107-82 victory over the Chicago Bulls on Saturday night.Matthews was the star of the game, obviously, Mavericks coach Rick Carlisle said. He is our leader right now with Dirk out. He really sets the tone for us in the locker room and on the floor. He is just the vocal guy.Matthews has accepted the expanded role as Nowitzki has been limited to five games by a strained right Achilles tendon.I feel like thats one of the reasons why they brought me over here (from Portland). Through this rough patch, injuries and everything, everybody had to mold together. Its almost like we had to restructure ourselves. I think everybody has embraced that.Harrison Barnes scored 17 of his 22 points in the first half to help Dallas improve to 4-15.Chicago was coming off a 111-105 victory over defending champion Cleveland on Friday night.Jimmy Butler led Chicago with 26 points.I dont think anybody played well tonight, Butler said. We didnt play with energy on either end of the floor.Barnes powered the Mavericks to a 17-point first-quarter lead with eight points.They came out and threw the first punch and kept throwing, and we could just never recover from that, Bulls coach Fred Hoiberg said. We did expend a lot of energy (Friday) night.Dwight Powell (17) and rookie Dorian Finney-Smith (11) had career highs in scoring, and Deron Williams had a season-high 15 assists with only one turnover.The biggest thing was we were even (43-43) on the boards, Carlisle said. Andrew Bogut had a game-high 11 rebounds, and Powell grabbed eight.Neither team scored in the first 2:15, but Dallas went on a 7-0 run over the next 1:20. The Mavericks led 23-6 with 3:17 left. The quarter ended with Dallas leading 29-18. Bogut had six points and eight rebounds.Chicago pulled within six points three times in the second quarter, but Dalllas finished the first half with a 57-45 lead.dddddddddddd In the third quarter, Matthews had 14 points, and the Maverick led by as many as 21 points.TIP-INSBulls: C Robin Lopez has a career-high 11 straight games with 10 or more points. He scored 15 against Dallas. ... F Jimmy Butler has reached 20 points in 17 of 19 games. He scored on a drive with 1:00 left in the third quarter, but was charged with a technical foul for arguing that he had been fouled.Mavericks: G Wesley Matthews made 7 of 11 3-point attempts. ... C Andrew Bogut fouled out, but had 11 rebounds and a season-high eight points. ... The Mavericks 29 first-quarter points were a season high. ... Their largest margin of victory before Saturday was 12 points.WADE RESTSBulls G Dwyane Wade missed his second game this season, both to rest. He stayed in Chicago after Fridays win over Cleveland. Their flight landed in the DFW Metroplex at 2:30 a.m. for the second game in a stretch of four games in five days. Nikola Mirotic started in Wades place and was scoreless in 13 minutes played.NOWITZKI INDEFINITEThe Mavericks said that they no longer will keep a timetable for when F Dirk Nowitzki (strained right Achilles tendon) would play. Instead, his return will be listed as indefinite. He has played in only five games this season.We said Im still a few games away, but luck can change, so I just have to go day by day, Nowitzki said.At this stage in my career, I dont move well anyways, so if Im out there at like 80, 90 percent, I dont think Im a big help, so I want to make sure my bodys responding the right way and well go from there.UP NEXTBulls: Return home to play Portland on Monday night. Chicago won at Portland 113-88 behind Jimmy Butlers 27 points on Nov. 15.Mavericks: Host Charlotte on Monday night in the second game of a four-game homestand. Dallas lost to the Hornets on the road Thursday night. ' ' '