There are days when Span doesn't know if he is going to play in the second half of the season. But when he has a day like Saturday, he believes he can make it back for the postseason push. There is no timetable on when Span will return to action.
"The big thing for me is to stay positive. It has been rough," Span said. "I'm trying to be realistic and be smart as well about this whole process."
Besides having the back problems, Span has had problems with his abdominal muscles, which were surgically repaired before the season started.
Span has been on the disabled list with back tightness since July 10. He was productive in 59 games this season, hitting .304 with five home runs and 22 RBIs.
Bill Ladson is a reporter for MLB.com and writes an MLBlog, All Nats All the Time. He also can be found on Twitter @WashingNats. This story was not subject to the approval of Major League Baseball or its clubs.