Cowboys defensive end DeMarcus Lawrence had his appeal denied and has been suspended for the first four games of the season for violating the NFLs substance abuse policy.Lawrence, who led the team with eight sacks last season, is being disciplined for using?amphetamines, sources told ESPN in April.This is the second consecutive year?the Cowboys will start the season without at least two key defensive players. Second-year defensive end Randy Gregory will miss the first four games of the season for violating the leagues substance abuse policy, and as also reported Thursday, middle linebacker Rolando McClain?was suspended the first 10 games for violating the substance abuse policy.McClain (substance abuse) and defensive end Greg Hardy (personal conduct) were both suspended for the first four games of the 2015 season.Lawrence will be eligible to return to the roster on Oct. 3, and is eligible to participate in all preseason practices and games.?Lawrence, who had offseason back surgery, played the best football of his career in the second half of last season. The coaches credited him with 56 tackles, 31 quarterback pressures and 10 tackles for loss as he became a disruptive force.In 2014, the Cowboys moved up to the 34th overall pick in a trade with the?Washington Redskins?to take Lawrence. He did not have a sack as a rookie in the regular?season, missing the first eight games of the season with a broken foot.ESPNs Todd Archer contributed to this report.Custom Philadelphia Phillies Jerseys . LOUIS -- Theres no telling how these wacky World Series games will end. Fake Phillies Jerseys . Their 38th instalment is arguably their biggest fight card to date, including three-title fights and a main event which was selected by the fans. The promotion boasts 14-straight years of business and is operated by MFC president Mark Pavelich, who is often overlooked in this country for the foundation hes established for MMA in Canada. https://www.cheapphilliesjerseys.us/ . -- Damian Lillard and LaMarcus Alrdridge were again the go-to duo for the Trail Blazers against the Kings. Philadelphia Phillies Shirts . Wilson hit Schenn from behind during Tuesday nights game in Philadelphia, earning a five-minute major for charging and a game misconduct. He has a phone hearing with the department of player safety, which limits any potential suspension to five or fewer games. Philadelphia Phillies Store . 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.Five English players and three from Ireland have been selected for Great Britain and Irelands Curtis Cup team.World No 1 Leona Maguire heads the Irish contingent, along with compatriots Olivia Mehaffey and Maria Dunne, while England are represented by Bronte Law, Alice Hewson, Meghan MacLaren, Rochelle Morris and Charlotte Thomas.Maguire, Law, Mehaffey and Hewson were selected automatically as the top players in the world amateur golf ranking, with MacLaren and Morris earning their places as the top players not otherwise exempt from the LGU order of merit. Thomas and Dunne were chosen by selectors for the 39th staging of the event between the top female amateurs from Great Britain and Ireland and the United States, which will be staged at Dun Laoghaire Golf Club, in Ireland, from June 10-12. Great Britain and Ireland team celebrate rare victory at Nairn in 2012 The team will be captained by Aberdeen solicitor Elaine Farquharson-Black, who played in the contest in 1990 and 1992.ddddddddddddWe have an extremely talented team which has considerable experience of playing amateur golf at the highest level, Farquharson-Black said. United States will be defending trophy at Dun Laoghaire this June I am looking forward to meeting up with the team at The Castle Golf Club to prepare for the match. With some of the best players in the world on both sides, it is going to be a really exciting Curtis Cup.The United States has won eight of the last nine contests, although Great Britain and Ireland did taste victory in the last home tie at Nairn in 2012.Also See:OpinionGolf on Sky Sports 4ScheduleFree HD Golf Game ' ' '