David Itskowitch, who helped launch the boxing division of Jay Zs Roc Nation Sports almost two years ago, resigned as the companys chief operating officer on Thursday.Itskowitch was the first person hired by the fledgling promoter when it got into the boxing business in August 2014. Under his watch, Roc Nation Sports has put on a handful of cards, signed two of boxings biggest names in undefeated former super middleweight world champion Andre Ward and former four-division world titleholder Miguel Cotto, and promoted the second-biggest pay-per-view card of 2015, Cottos middleweight world title loss to Canelo Alvarez in November. That fight, which Roc Nation Sports co-promoted with Golden Boy Promotions, generated about 900,000 buys. Only the record-breaking Floyd Mayweather-Manny Pacquiao spectacle did more business.Itskowitch did not give a reason for his resignation but said the parting was amicable.Im appreciative of the opportunity that Roc Nation Sports gave me to build their boxing division, Itskowitch told ESPN.com. I value the relationships that I formed while I was with the company, and I am extremely proud of all that we accomplished in two years. Im looking forward to new challenges in my career.Itskowitch, 41, said he was unsure if he would remain involved in the boxing business; it is the business he has been in for most of his adult life.From 1996 to 2000, Itskowitch, of New York, worked at HBO as the right-hand man for then-senior vice president Lou DiBella, who was responsible for programming the networks fights. When DiBella left HBO to found his own promotional company, Itskowitch went with him, working for DiBella Entertainment from 2000 to 2006.Itskowitch then joined Golden Boy Promotions as its COO, working for Oscar De La Hoyas company from 2007 until resigning in 2013 to take a break from the sport.Roc Nation Sports plans to fill the COO position but probably not until after Wards fight against Alexander Brand on Aug. 6. Roc Nation is thankful for the efforts and contributions Dave Itskowitch made to Roc Nation Sports, but at this time, we have decided to part ways, Michael Yormark told ESPN.com. He is the president and chief of branding and strategy for parent company Roc Nation. We wish him the best of luck in the future. Cheap Custom Shirts .ca looks back at the stories and moments that made the year memorable. Clearance Custom Shirts Online . Sgt. Eric ONeal says most of the arrests at Monday nights game were for public drunkenness, though one person was taken into custody on suspicion of trying to steal a seat from the stadium. http://www.customcheapshirts.com/ . - Raiders general manager Reggie McKenzie never doubted he would bring back coach Dennis Allen for a third year despite back-to-back 4-12 records. Authentic Custom Shirts .ca NBA Power Rankings, ahead of the Miami Heat and San Antonio Spurs. Wholesale Custom Shirts . Anthony Calvillo, through 20 CFL seasons, was frequently invincible and largely stoic in the heat of competition. But underneath the professional exterior he was, and is, compellingly human.Pacino Horne has gone from Grey Cup hero to being unemployed. The speedy cornerback was among 11 players released Monday by the Toronto Argonauts. Horne started the clubs 35-22 CFL championship win over the Calgary Stampeders at Rogers Centre last November and delivered a key play in the victory. With Toronto leading 7-3, Horne intercepted Calgarys Kevin Glenn and returned it 25 yards for the TD and a 14-3 advantage. The six-foot-one, 181-pound Horne registered four interceptions with Toronto last season, his first in the CFL. Horne, whose mother named him after Academy Award-winning actor Al Pacino, was late reporting to the Argos training camp due to a calf injury. "We have a number of talented players competing for spots in our secondary and we look forward to seeing them develop," Argos GM Jim Barker said in a statement. Also released were kicker/punter Anthony Alix and receivers Quincy Hurst and Djems Kouame, all Canadians. Alix, a native of Mont-Tremblant, Que., spent the bulk of the year on the practice roster but did appear in one regular-season game. Hurst, a Vancouver native, was a 2012 fourth-round draft pick while Kouame, who was born in Montreal and raised in Ottawa, was a 2011 third--round selection who spent the 12 season on the injured list with a broken leg.dddddddddddd Running back Daryl Stephenson, who captured the 2006 Hec Crighton Trophy while at the University of Windsor, was among three players released by the Hamilton Tiger-Cats. The six-foot-two, 230-pound native of London, Ont., was a 2008 third-round draft pick of the Winnipeg Blue Bombers. He joined the Ticats as a free agent in February 2011. The Ticats also announced fullback Isaac Dell, a 2013 fifth-round draft pick, has retired. Offensive lineman Mark Dewit, a five-year CFL veteran, was released by the Bombers. The six-foot-three, 305-pound Dewit, a Calgary native, was a 2008 sixth-round draft pick of the Argos and also spent time with Hamilton and Calgary before signing with Winnipeg last February as a free agent. The Saskatchewan Roughriders released eight players, including sophomore quarterback Levi Brown. The Buffalo Bills selected Brown in the seventh round of the 2010 NFL draft before releasing him in September 2011. Brown signed with Saskatchewan in March 2012. The Riders also placed offensive lineman Patrick Neufeld and linebacker Mike McCullough, both Canadians, on the nine-game injured list. ' ' '