A veritable cornucopia of injury updates emerged pregame here at rainy Citi Field. Here’s what you need to know:

>>> Stephen Strasburg visited Washington yesterday in order to see an orthopedic surgeon for a standard check-up and “he did very well,” General Manager Mike Rizzo said. Strasburg will throw off a mound for the first time since his Tommy John surgery last Sept. 3 “any day now,” Rizzo said.

>>> Rick Ankiel, who last played May 2, has moved his rehab from a right wrist sprain to extended spring training in Viera, Fla. He will take batting practice and do conditioning drills at first and “within a few days” starting playing in extended spring training, Manager Jim Riggleman said. Ankiel will then proceed to a minor league rehab assignement. It seems as though Ankiel will be away from the Nationals for at least another week or so.

>>> Ryan Zimmerman is “close” to heading to Florida to continue his rehab from a torn abdominal muscle, Riggleman said. He will take some light swings in Washington before he goes to extended spring training. The Nationals expect Zimmerman to remain out until roughly mid-June. He underwent surgery to repair his abdominal May 3.

>>> You’re not going to believe this, but Chien-Ming Wang is building up arm strength in Viera. He has not felt pain in his surgically repaired shoulder in months, Rizzo said. Wang has thrown up to 65 pitches in an extended spring training game, but the Nationals have not scheduled him to throw in a minor league game.

>>> Oliver Perez was set to make his first appearance in a minor league game, but Class AA Harrisburg was rained out. The Nationals signed Perez after the Mets released him this spring training, and the Mets owe him $12 million this season. Rizzo said Perez’s velocity has improved from the low-80s to the mid-to-high 80s.

“He’s had flashes of having some good major league stuff,” Rizzo said. “And then he’ll relapse into having just OK stuff. We want to see consistency of holding his delivery together, consistency of his command, consistency of his velocity.”