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. wholesale china jerseys .ca looks back at the stories and moments that made the year memorable. wholesale nfl jerseys online . With his new coach and six-time Grand Slam singles champion Boris Becker watching him during an official match for the first time, Djokovic appeared tentative early against the Slovakian player, who often appeared content to keep the ball in play. http://www.cheapchinanfljerseys.org/ .ca NFL Power Rankings, overtaking the Denver Broncos and remaining ahead of NFC competition San Francisco, Carolina and New Orleans. wholesale cheap nfl jerseys . Perez, 35, posted a 1-2 record with a 3.69 earned-run average in 19 relief appearances last season. His season ended Aug. 9 due to a torn ligament in his left elbow. Perez joins infielder Andy LaRoche and catcher Mike Nickeas with minor-league agreements for 2014 that include invitations to attend spring training. cheap nba jerseys china . -- Adam Snyder returned to the San Francisco 49ers this season because the offensive lineman thought it was his best opportunity to win a championship.OAKVILLE, Ont. -- David Hearn was pleased to be the low Canadian at his national open, but wishes he couldve given his fans something more. Hearn shot a 1-over 73 in the fourth round of the RBC Canadian Open on Sunday to finish the $5.6-million PGA Tour event at 4 under, tying a group for 44th. Its the second time hes been the best Canadian at the tournament, having tied for 20th at the Hamilton Golf and Country Club in 2006. "Ive been low Canadian once before and its obviously proud for me to do that in front of everyone here at home," said Hearn. "It wasnt the finish that I was really looking for. I had a nice chance today, I was playing pretty solid, to kind of finish off a nice round and do it with a little bit of style. "But Ill take away some positives from the week and, obviously, I appreciate the support from everyone here this week and it always feels good to play at home." Hearn is from Brantford, Ont., 60 kilometres west of Oakville, Ont., the site of this years Canadian Open. Fans followed Hearn and fellow countrymen Mike Weir and Roger Sloan around the course at Glen Abbey Golf Club, with most gathering at the 18th green to watch the Canadians finish out their rounds. The crowd cheered when Hearn sank his final putt of the tournament. "I wouldve liked to have been making birdie like I did on Friday, get them a little bitt more excited," said Hearn of the crowds reaction.dddddddddddd "It feels great. "As I say, the support from everyone in Canada is amazing and I cant wait to do it again next year at Royal Montreal." Weir, from Brights Grove, Ont., finished in a tie for 49th at 3-under par. He was also pleased with the support of the Canadian fans. "Its wonderful, to have great support like that is special," said Weir. "Ive said that before. Not many guys kind of get that feeling to represent your country and to have that sense of pride. You know, it feels great. Ill say that." Sloan, from Merritt, B.C., was consistent throughout the tournament. He fired a 1-under 71 in the first two rounds, then an even-par 72 in the third and fourth to finish at 2-under par, tied for 52nd. The 26-year-old is a regular on the Web.com Tour, but feels that the higher-level PGA Tour is within his reach. "The PGA Tour is not way up there anymore. Its just within grasp," said Sloan. Its comforting to know if I stick to the process and stay committed to what Im doing, Im going to be out here soon." A Canadian hasnt won the national open since Pat Fletcher in 1954. The only Canadian-born golfer to win the Canadian Open is Karl Keffer (1909, 1914). Although a Canadian citizen at the time of his victory, Fletcher was born in England. ' ' '