"We've played good baseball all year," Snider said. "To have the veterans that we've picked up, and you add them into the mix with the guys that have grinded all year, brings some great personality, some great veteran leadership and overall great players."
Pittsburgh went ahead 3-2 in the eighth. Andrew McCutchen walked with one out and raced around to third when newly acquired Justin Morneau followed with a perfectly executed hit-and-run single into left field. Marlon Byrd then hit an RBI double off Brandon Kintzler into the left-field corner.
Pinch-hitter Pedro Alvarez was intentionally walked to load the bases with two outs, and Kintzler got pinch-hitter Gaby Sanchez to fly out to end the threat.
Morneau, who was acquired in a trade with Minnesota on Saturday, had three hits. Byrd, who came over in last week's deal with the New York Mets, went 2 for 3 with two RBIs and has hit safely in six of his first seven games with Pittsburgh.
Snider said the addition of Morneau and Byrd has supplied a big boost.
"I think all of us are fortunate and blessed to have those guys on this team," he said. "To help us as a squad, the city of Pittsburgh and the fans that have been grinding for the last 20 years, give them something to be excited about and make a push on this thing."
Jean Segura had two hits and Jonathan Lucroy drove in two runs for Milwaukee, which has lost five in a row.
Lucroy shared Henderson's misery.
"He (Snider) had fouled that fastball off pretty good right before that pitch," Lucroy said. The catcher was thinking "let's throw a slider right here and keep it down. He'll probably swing at it, if it's down," he said.