(Wilfredo Lee/AP)

In his first full season back from Tommy John surgery, right-handed starter Taylor Jordan has about 20 to 30 more innings before he is shutdown, according to Nationals Manager Davey Johnson. Jordan underwent reconstructive elbow surgery 19 months ago and pitched only 54 1/3 innings last season.

With Tuesday’s 7 2/3-inning start, Jordan has thrown 29 1/3 innings over five major league starts. The 24-year-old rookie threw 90 1/3 innings in the minor leagues, bringing his season total across all levels to 113 2/3 innings. If throws 20 to 30 more innings, he would be facing a season cap of about 135 to 145 innings — without factoring in the work logged in extended spring training and other side work.

If Jordan averages a conservative five innings per start, another 20 to 30 more innings this season would be as many as four to six starts.

General Manager Mike Rizzo has said the Nationals have “general parameters” for regulating Jordan’s innings but hasn’t yet publicly revealed them. Last season, as Jordan returned from Tommy John surgery, the Nationals pegged his total to around 80 to 90 innings, which includes innings in games and other work such as extended spring training.

“I know what the parameters are and where he’s at,” Rizzo said on Saturday. “When he gets to that area, then we’ll shut him down, like we’ve done with everybody else.”

Jordan has filled in for Dan Haren, when he was on the disabled list, and Ross Detwiler, who is currently on the DL. The sinker-baller has posted a 3.68 ERA over five starts and, at times, been betrayed by the defense behind him. The Nationals have been impressed with his quick growth while in the major leagues, the same skill that allowed him to jump straight here from Class AA Harrisburg after only nine games.