AP source: Giants acquire reliever Will Smith from Brewers

SAN FRANCISCO (AP) A person with knowledge of the trade says the San Francisco Giants have acquired left-handed reliever Will Smith from the Brewers to bolster their bullpen for the stretch run, sending backup catcher Andrew Susac and pitching prospect Phil Bickford to Milwaukee.

The person spoke on condition of anonymity Monday because it hadn't been announced.

The NL West-leading Giants have struggled mightily since the All-Star break and had been looking to upgrade a relief corps that has been so reliable in recent years, helping them win World Series championships in 2010, '12 and '14. San Francisco has won two straight games since losing 11 of 13 following the All-Star Game.

The 27-year-old Smith is 1-3 with a 3.68 ERA this season in 27 games and 22 innings.