The Giants embark upon their final road trip of the season, visiting San Diego for three games before playing three more at St. Louis with a scheduled off-day Thursday in between series. Andrew Suarez (6-11), who's 2-6 with a 5.73 ERA in 13 road starts, will make his first career appearance at Petco Park in Monday's 7:10 p.m. PT opener. The Padres will counter with right-hander Bryan Mitchell (1-3).