Washington Nationals (32-46, fourth in the NL East) vs. San Diego Padres (42-35, third in the NL West) San Diego; Monday, 9:40 p.m. EDT PITCHING PROBABLES: Nationals: Mitchell Parker (4-8, 4.71 ERA, 1.32 WHIP, 58 strikeouts); Padres: Stephen Kolek (3-2, 3.59 ERA, 1.29 WHIP, 37 strikeouts) BETMGM SPORTSBOOK LINE: Padres -162, Nationals +137; over/under is 8 runs BOTTOM LINE: The San Diego Padres host the Washington Nationals on Monday to start a three-game series. San Diego has a 23-13 record at home and a 42-35 record overall. Padres pitchers have a collective 3.61 ERA, which ranks ninth in the majors. Washington is 32-46 overall and 16-22 on the road. The Nationals have gone 25-13 in games when