At Marlins camp on Saturday morning, Alvarez, accompanied by several teammates, posed for pictures while holding the Venezuelan flag. Several players held up handwritten signs with the word "Paz" ("peace" in Spanish).
"With the picture, I'm hoping to send a message to Venezuela to have peace," Alvarez said. "To leave the violence behind."
Alvarez is from Valencia, and his other family members there are fine.
"My daughter is the one who was affected. She was affected by tear gas -- twice -- so I sent for her," Alvarez said. "I sent for her and my wife to go to Miami."
The message the Marlins sent is similar to what the Tigers did on Friday. Detroit players, including Venezuelan natives Miguel Cabrera and Anibal Sanchez, also took pictures holding their country's flag as a sign of solidarity.
With the popularity of baseball in Venezuela, Alvarez is hopeful that the big leaguers' plea for peace can help end the violence in the country.
"As baseball players, our message has more of a potential to [reach people]," Alvarez said. "Detroit sent out a picture [on Friday]."
Not just Venezuelan players posed in the Marlins' picture.
Cuban-born Jose Fernandez, Arquimedes Caminero of the Dominican Republic and A.J. Ramos from Texas, were among those standing in support.
Joe Frisaro is a reporter for MLB.com. He writes a blog, called The Fish Pond. Follow him on Twitter