"Well, we're not giving up," Martin said. "We're still fighting. That's kind of in our DNA. No matter what the score is, we're going to give our best effort. We're aware some days we're going to get beat, but we're never really going to cave in. Today they were better than us."
Once again, the Cubs were better than Rodriguez, whom Hammel and Chicago beat for the second time.
Rodriguez went five innings, giving up four runs and nine hits, keeping the Pirates from clinching their third straight series win to start the season, something they haven't done since 1992.
Rodriguez missed most of 2013 with a left forearm injury and Pirates manager Clint Hurdle called his performance an "optimistic outing."