['batterName | Espinosa', 'battersFacedNumber | two', 'pitchNumber | four-pitch', 'pitchResult | retired', 'pitchResult | walk', "pitcherName | Ryan_O'Rourke", 'teamName | Nationals']
The Nationals rallied against Ryan O'Rourke, who retired the 15 two batters before issuing a four-pitch walk to Espinosa.