The Giants conclude a six-game road trip with a Fourth of July date against the Rockies at 5:10 p.m. PT on Wednesday. San Francisco's starter will be left-hander Andrew Suarez, who's striving to make his case to stay in the rotation -- or at least in the Majors -- with Jeff Samardzija and Johnny Cueto returning this week. Colorado left-hander Tyler Anderson will oppose Suarez.