Washington Nationals outfielder Bryce Harper was to move up a level Thursday night in his injury rehabilitation assignment, joining Double-A Harrisburg for a game at Bowie, Md.

Harper hasn’t played for Washington since May 26 and was put on the disabled list June 2 with bursitis in his left knee.

Washington manager Davey Johnson said the plan is for Harper to play a full game.

“Hopefully the field is not going to be damp. I don’t know what kind of field is at Bowie, but Potomac’s is right at the bottom of a hill, and that field can retain water,” Johnson said. “Ideally we’d like him to run around for eight or nine innings, see how the knee reacts to that.”

In two games with Class-A Potomac, Harper went 2-for-4 with a double, home run, a walk and run over eight innings. He played three innings in left field on Tuesday and was the designated hitter Wednesday due to the possibility of rain.

Johnson hopes Harper can return to the Nationals for Monday’s series opener against Milwaukee.

“I’d like to see him go nine innings, probably take tomorrow off, then go back and play again [Saturday],” Johnson said. “Just make sure that everything’s going to stay calmed down.”

Jeter making progress

New York Yankees shortstop Derek Jeter has taken another stride in his comeback from a broken left ankle by running outdoors for the first time in two months.

Jeter started the running program Thursday at Steinbrenner Field and called it “the last step” before playing in minor league games. The Yankees captain hopes to run the bases soon.

“Everything is good,” Jeter said. “No problems whatsoever. It’s a constant progression.”

There is no date yet for Jeter to begin a minor-league injury rehabilitation assignment.

Rockies star Tulowitzki mending

Colorado Rockies shortstop Troy Tulowitzki says his broken rib is healing and he hopes to return in time to help his team make a run at an NL West title. Tulowitzki says he has begun some light throwing and the injury feels more like a “bruise” after two weeks on the disabled list. He was injured diving for a ball against Washington on June 13 and is projected to miss four to six weeks.

Around the leagues

Freddy Garcia re-signed with the Baltimore Orioles and agreed to go to the minors to remain with the team. The 37-year-old righty will report to Norfolk and could again factor into Baltimore’s season-long search for a dependable fifth starter. … The Colorado Rockies are bringing Reid Brignac back to the organization, signing the infielder to a minor-league deal. Brignac will report to Triple-A Colorado Springs.

Daulton to have brain surgery

Former All-Star catcher Darren Daulton was diagnosed with two brain tumors and will undergo surgery next week.

Daulton, who played 14½ of his 15 seasons for the Philadelphia Phillies, has hosted Talking Baseball with Dutch at 97.5 The Fanatic the last four years.