Ryan Zimmerman 3B/LF WAS 4 Days

Zimmerman (hamstring) had an MRI earlier this week that showed progress with his injury. As a result, he's been able to resume jogging, Dan Kolko of MASN reports.

To this point, Zimmerman has been unable to resume swinging. His return appears to be a couple of weeks away, while the Nationals will have a tricky situation to deal with upon Zimmerman's return with the addition of Asdrubal Cabrera to the infield.

Ryan Zimmerman 3B/LF WAS 8 Days

Zimmerman (hamstring) is expected to increase the intensity of his baseball activities this week, Mark Zuckerman of CSN Mid-Atlantic reports.

While the news would seem to be encouraging on the surface, manager Matt Williams said Zimmerman remains a ways off hitting again, tempering most of the enthusiasm for an early-September return. When he does finally rejoin the team, Zimmerman may not be guaranteed a regular starting job. He struggled with his throws while playing third base prior to suffering the injury, and with all of the team's position players healthy at this time, Zimmerman may have to accept a role as an over-qualified pinch-hitter.

Ryan Zimmerman 3B/LF WAS 12 Days

Zimmerman (hamstring) did some light throwing on the field prior to Thursday's game, James Wagner of the Washington Post reports.

Throwing is the first small test for Zimmerman's ailing hamstring, but bigger hurdles await, namely running and hitting. While manager Matt Williams said Wednesday that Zimmerman might be able to return in September, in doing so he also suggested there's a real possibility he does not.

Ryan Zimmerman 3B/LF WAS 13 Days

Nationals manager Matt Williams suggested that Zimmerman (hamstring) might be able to return in September, the Associated Press reports.

Ultimately, he hasn't resumed baseball activities, and there doesn't appear to be a public timetable for that to occur. As a result, Zimmerman's return during the final five weeks of the season is still a questionable proposition.

Ryan Zimmerman 3B/LF WAS 15 Days

There is no timetable for Zimmerman (hamstring) to begin baseball activities, MLB.com's Bill Ladson and Daniel Popper report.

He's been out almost a month with the Grade 3 hamstring strain, and the only thing he has done in terms or recovery is to work on an underwater treadmill. He can walk normally, but he still can't do much else, and at this point, owners should probably look elsewhere for production at third base in single-season leagues. Anthony Rendon will continue to man the hot corner with Asdrubal Cabrera and Danny Espinosa taking turns at second base.

Ryan Zimmerman 3B/LF WAS 20 Days

Zimmerman has begun a strengthening program on his injured hamstring, MLB Network Radio reports.

Zimmerman has not encountered any hiccups in his recovery just yet, but he will remain sidelined for several more weeks, and is not expected to resume playing until sometime in September.

Ryan Zimmerman 3B/LF WAS 28 Days

Zimmerman (hamstring) is expected to miss six weeks, Adam Kilgore of the Washington Post reports.

An extended absence was expected after Zimmerman was diagnosed with a Grade 3 hamstring strain, but GM Mike Rizzo offered up a six-week timetable Tuesday. The 29-year-old took the first step in his recovery Monday, walking on an underwater treadmill, and he'll now advance gradually with an eye toward returning in mid-September.

Ryan Zimmerman 3B/LF WAS 28 Days

Zimmerman walked on an underwater treadmill Monday and his hamstring felt fine, according to manager Matt Williams, Mark Zuckerman of CSNWashington.com reports.

While it may not sound like much, Monday's activity represents a positive first step for Zimmerman in his rehabilitation from a Grade 3 hamstring strain. The Nationals will bring him along slowly, and it sounds like Zimmerman will likely miss most of the regular season, but perhaps he can make it back in time for a postseason run. Anthony Rendon will continue to occupy third base in his absence, with deadline acquisition Asdrubal Cabrera manning second.

Ryan Zimmerman 3B/LF WAS 1 Month

Ken Rosenthal of FOX Sports reports that Ryan Zimmerman (hamstring) is expected to miss 6-8 weeks.

While the team could look to add a second baseman, they'll roll in the interim with a combination of Danny Espinosa and Zach Walters with Anthony Rendon sliding over to cover third base.

Ryan Zimmerman 3B/LF WAS 1 Month

Nationals manager Matt Williams said the MRI results for Ryan Zimmerman showed a "pretty substantial" hamstring strain.

Well, that's not good. Zimmerman was placed on the disabled list prior to Wednesday's game, and it doesn't appear he's anywhere close to returning to the club at this point. Anthony Rendon will get the majority of the starts at third base with Zimmerman sidelined.