Several players around baseball are participating in "Throwdown," a fundraiser for Not For Sale, a non-profit, anti-human-trafficking organization.
The participants include three
"It's a cause that a lot of people don't know about," Gonzalez said.
The cause was introduced in baseball circles by
Some players agreed to pledge one day's salary to the organization.
Gonzalez said his donation will be based on how many hits he collects this season. He will donate twice as much, he said, for hits against the Giants.
As the father of two girls, Gonzalez said he was particularly sensitive to the issue.