During the 2015 season, two young left-handers made their Major League debuts for the Washington Nationals out of the bullpen. One of them was Felipe Rivero, who ended up playing a major role down the stretch. The other one was Matt Grace. Grace made 26 appearances for the Nats, going 2-1 with a 4.24 ERA.
The Nats’ eighth round selection in the 2010 MLB Draft was called up to the Major Leagues on April 22 when Rivero went on the disabled list due to a GI bleed. Grace made his debut against the St.