MLB rules don’t specify that a dog can’t play baseball. The Nationals won’t be testing that, even as they called up Bruce the Bat Dog on Tuesday afternoon.

The dog days of summer arrived Saturday at Nationals Park. Bruce, a 21-month-old Golden Retriever, fetched a bat during a ceremony before the Washington Nationals’ game against the Miami Marlins ...

The dog days of summer arrived Saturday at Nationals Park. Bruce, a 21-month-old golden retriever, fetched a bat during a ceremony before the Washington Nationals-Miami Marlins game.

Most teams use bat boys or bat girls. Rochester uses Bruce. Earlier in the week, the Nationals announced on social media that Bruce had been “promoted” to make his Major League debut on Saturday.

The dog days of summer arrived Saturday at Nationals Park. Bruce, a 21-month-old golden retriever, fetched a bat during a ceremony Saturday before the Washington Nationals' 4-3 loss to the Miami ...

The dog days of summer arrived Saturday at Nationals Park. Bruce, a 21-month-old golden retriever, fetched a bat during a ceremony Saturday before the Washington Nationals' 4-3 loss to the Miami ...