The San Francisco Giants have moved Tim Lincecum to the bullpen as he tries to work through his latest struggles.

Yusmeiro Petit will replace him in San Francisco's rotation.

The two-time National League Cy Young winner is coming off the second-shortest start of his career Saturday. He was tagged for six runs, four earned, on six hits with four walks in less than three innings against the Washington Nationals.

Lincecum received a $35 million, two-year contract in late October to stay with the Giants.