San Diego Padres (19-19, second in the NL West) vs. Chicago Cubs (21-15, second in the NL Central)Chicago; Tuesday, 7:40 p.m. EDTPITCHING PROBABLES: Padres: Randy Vasquez (0-1, 5.87 ERA, 1.83 WHIP, five strikeouts); Cubs: Shota Imanaga (5-0, 0.78 ERA, 0.75 WHIP, 35 strikeouts)BETMGM SPORTSBOOK: LINE Cubs -146, Padres +123; over/under is 8 1/2 runsBOTTOM LINE: The San Diego Padres lead 1-0 in a three-game series with the Chicago Cubs.Chicago has gone 12-5 at home and 21-15 overall. The Cubs have