• Haren played catch on Thursday for the first time since landing on the disabled list with stiffness in his right shoulder. Pitching coach Steve McCatty said that there were no issues and Haren felt good.
• The Nationals promoted two of their Minor League shortstops on Friday, sending Jason Martinson from Potomac to Harrisburg and Josh Johnson from Harrisburg to Syracuse.
Martinson, the Nationals' No. 20 prospect, hit .268 with 12 home runs, 53 RBIs and an .858 OPS in 73 games at Potomac, where he also played the second half of last season. The 24-year-old was a fifth-round pick in the 2010 First-Year Player Draft.
Johnson hit .267 with seven home runs, 28 RBIs and an .803 OPS in 53 games for Harrisburg, showing increased power. The 27-year-old spent much of last season with Syracuse and hit .231 with no homers.