Injury Notes: Medlen, Mesoraco, Bailey, Fernandez, Rendon, Janssen, Verlander, Nathan

Injuries remain perhaps the largest driver of needs in the early part of the season — a topic that MLBTR’s Tim Dierkes and I explored in today’s podcast with respect to starting pitching. Let’s have a look at some key injury situations around the game:

• Rehabbing Royals starter Kris Medlen is headed to extended Spring Training to begin throwing against live batters, MLB.com’s Jeffrey Flanagan reports. That leaves him on track for a rehab assignment in May. Kansas City has $8.5MM riding on the righty’s ability to return to form after his second Tommy John surgery.
• The Reds are missing two key cogs in backstop Devin Mesoraco and righty Homer Bailey. As Michael Hunt reports for MLB.com, manager Bryan Price says that Mesoraco — still not on the DL despite a 17-game absence from his usual catching duties — is still not ready “to try it out just yet,” adding that Mesoraco is “coming along slowly.” There are longer-term concerns with regard to Bailey, of course, and surgery is said to be on the table. “We’re probably going to know in the next one-to-two days what our plans are with Homer,” Price said. “You spend a lot of time when you make a diagnosis, fact-finding and making sure everything you see is as it appears. That’s been the time consumer, making sure it is what we think it is and finding the best way to treat it.”
• Marlins starter Jose Fernandez is working his way back from Tommy John surgery, of course, and recently faced hitters in a live BP session for the first time. You can check out the video of his outing, courtesy of FOX Sports Florida.
• After a pause in his rehab, Nationals infielder Anthony Rendon is preparing for another Double-A appearance in the coming days, MLB.com’s Bill Ladson reports. The issue has not been with his knee, which caused him to hit the DL to start the year, but with tightness in his side. That’s good news for the club, obviously, as is the fact that reliever Casey Janssen appeared in an extended spring game. He is set to begin his own run up through the minors in short order, per Ladson.
• Injured Tigers starter Justin Verlander is set for a third MRI on his right triceps area early next week, Anthony Fenech of the Detroit Free Press reports (Twitter links). Meanwhile, reliever Joe Nathan underwent his Tommy John procedure yesterday, Fenech tweets, with Nathan saying that it went well. It figures to be a long road back for the 40-year-old, but indications are that he’ll try to return to the big leagues.