San Francisco Giants president of baseball operations Farhan Zaidi said the injury that sent left-hander Derek Holland to the injured list last month was legitimate and praised the veteran's competitive spirit, a day after Holland said he was sidelined with a ''fake injury. Zaidi said Sunday that medical records back up the legitimacy of Holland's injury, described by the team as a bone bruise on his left index finger. He said there are often differences of opinion between players and management about the severity of injuries.