NATIONALS 10, BREWERS 5 WASHINGTON — Bryce Harper homered on his first swing since coming off the disabled list and his Washington Nationals teammates quickly joined in, beating the slumping Milwaukee Brewers 10-5 on Monday night. After missing 31 games with bursitis in his left knee — the most lingering fallout from his collision with the Dodger Stadium wall — Harper energized the Nationals and sparked their second rout in two days. After toying with .500 for the entire month of June, Washington moved two games above the break-even mark for the first time since late May.