Outfielder Angel Pagan, who has been absent from the Giants’ lineup since May 25 with a strained left hamstring, had a setback during the first game of his rehab assignment with Class A San Jose at Stockton. Pagan was unable to run out a grounder to second base in the ninth inning and had to limp to first base before collapsing to the ground. A cart took Pagan off the field.