Worth noting

• Nationals reliever Ryan Mattheus (chest inflammation) had his first bullpen session in more than three weeks. He threw 20 pitches -- all fastballs. It's uncertain when he will pitch in his first Grapefruit League game. Mattheus suffered the injury during the first week of Spring Training last month.

• The Nationals play split-squad games against the Astros and Braves on Wednesday. Triple-A Syracuse manager Billy Gardner Jr. will manage the team against Braves, while Williams will manage against Houston.

• Nationals right-hander Doug Fister played catch on Tuesday and didn't have any problems throwing the baseball. Fister missed a start last week because of inflammation in his right elbow. Fister will get Wednesday off and then throw on flat ground again before having a bullpen session and working in a game. Williams did not give a timetable as to when Fister will pitch in a game.