The NFL will send teams an explanatory video to clarify this seasons spate of unsportsmanlike conduct penalties, senior vice president of officiating Dean Blandino said Tuesday.Blandino, however, reiterated that the emphasis on such calls has come at the direction of the leagues competition committee and wont be relaxed as the season continues.Taunting calls this season have risen 220 percent compared to the first four weeks of last season, while other unsportsmanlike penalties -- primarily for celebrations -- are up 56 percent, according to ESPN Stats & Information research.Many players have said they werent aware that their penalized acts were illegal, and Pittsburgh Steelers coach Mike Tomlin -- a member of the competition committee -- said Tuesday he thought the league should provide clarification.Steelers wide receiver Antonio Brown has been penalized twice this season for twerking during post-touchdown celebrations.The video about clarification should be circulated within the next week, Blandino said during an appearance on NFL Network.We certainly want the teams to have clarification, Blandino said, and this isnt a new issue. Weve been dealing with this in the past. And so were going to send a tape out in the next week or so and clarify some of these things. But the key is if its a gesture that either mimics a violent act -- thats something with a firearm or a bow and arrow -- or a sexually suggestive act, those are unsportsmanlike conduct. Thats ... something that officials will flag. Thats direct from the competition committee and something that were going to try to be as consistent as possible.Washington Redskins cornerback Josh Norman was penalized last Sunday for mimicking the act of shooting a bow and arrow during a celebration after receiving a warning for a similar act two weeks earlier. Referee Jeff Triplettes announcement of the penalty has been mocked on social media.We certainly dont want our officials getting too specific with the announcement, Blandino said. Custom Sharks Jerseys . 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Brian Downing was with the Chicago White Sox at a time when I listened to every game I possibly could on the radio. That particular season the late great Harry Caray was calling the White Sox games. LOS ANGELES -- USC?coach Clay Helton said Thursday hell announce the teams starting quarterback Aug. 20, the day after the schools Salute to Troy event.That would give redshirt junior Max Browne or redshirt freshman Sam Darnold, the two quarterbacks competing for the job, two weeks to prepare for the Sept. 3 opener against Alabama.Helton echoed previous statements he made after spring practice, that if he had to name a starter Browne would win the job, but that there wasnt enough separation between the two to make a final decision.Today, both of them played well, Helton said after USC opened camp. I thought that they made good decisions. Just like it was in the spring, both are playing at a very high level.USC has 17 scheduled practices remaining before Helton names a starter.Because of NCAA rules that mandate two nonpadded practices to start training camp, Thursdays night session was in shorts and helmets. The environment isnt ideal for evaluating quarterbacks in game-like situations, but both had their ups and downs. There were several long touchdown passes, but both also threw interceptions.For Browne, who committed to USC when Alabama offensive coordinator Lane Kiffin was the Trojans head coach, it might be tempting to look ahead to the first game of thee season.dddddddddddd But after serving as?Cody Kesslers?backup the past two seasons, Browne said hes putting most of his energy into winning the starting job.Browne said he has spent a good amount?of time studying Alabama.But maybe not as much as youd think, Browne said. Because I have to go out and beat [USC defensive coordinator] Clancy Pendergasts defense first before I worry about Nick Saban.Preparing for the Crimson Tide has occupied a bit more time for Helton, who said he has been ending every day holed up in his office, falling asleep while watching film of Alabama.I got my couch up in my office. I watch film until I find myself passed out on the chair, then I flop on the couch and wake up, get a cup of coffee and start again, Helton said. Its all-encompassing. You worry about your team, but youre also, in the back of your mind, every little waking second that you get, youre preparing for your next game, and our next game is Alabama.Linebacker Cam Smith and offensive lineman Toa Lobendahn, both of whom missed the end of last season and all of spring practice with knee injuries, were full participants in practice Thursday. ' ' '