thought things couldn't get any worse following a walk-off grand slam by Chicago Cubs rookie David Bote in Sunday's contest were wrong.Washington lost in heartbreaking style again Monday http://www.marinersfanproshop.com/authentic-dee-gordon-jersey , this time via a walk-off long ball from St. Louis Cardinals shortstop Paul DeJong. The Nationals appeared to be well on their way to victory with a 4-2 lead entering the eighth, but they allowed five runs in the final two innings to lose 7-6 even though they scored two themselves in the top of the ninth.MLB MLBWhat a game. What an ending. #Walkoff nng5hPzaPu"I don't know what else to do," manager Dave Martinez said in a head-turning quote after the loss Robinson Cano Jersey , per Barry Svrluga of the Washington Post.The Nationals won the National League East in each of the last two years, but they face an uphill challenge if they are going to make it three seasons in a row. They are now seven games behind the Atlanta Braves and six games behind the Philadelphia Phillies in the race and running out of time with the season entering the stretch run.They can't afford anymore bullpen meltdowns. WASHINGTON (AP) — The Washington Nationals scratched outfielder Bryce Harper from Thursday’s lineup with right knee soreness.Atlanta reliever Dan Winkler hit Harper just below the right knee in the seventh inning of the Braves’ 8-3 victory on Wednesday. Washington manager Dave Martinez said X-rays on Harper were negative.“We thought he was going to be OK,” Martinez said. “He was out there trying to get loose this morning Felix Hernandez Jersey , and just couldn’t get loose. It was pretty swollen. So rather than him trying to play through it, we thought the best option would be having him come off the bench if we need him.“He’s going to stay in and get treatment.”Harper, the 2015 National League MVP and a six-time All-Star Hisashi Iwakuma Jersey , is hitting .234 with 28 home runs and 71 RBIs. He leads the NL in walks (88) and ranks third in the league in homers.Michael Taylor replaced Harper in the lineup in center.