D.C. United midfielder Danny Cruz will miss about four weeks after injuring his right hamstring in the first half of a 3-1 victory over Toronto FC on Saturday night at RFK Stadium, club officials said Tuesday.

The setback is softened by the fact that United is approaching a three-week break in the MLS regular season. So Cruz will probably miss just three league matches: Saturday against the New England Revolution, June 16 at the Philadelphia Union and June 24 at the New York Red Bulls.

During the league lull, United (7-4-3) is scheduled to play one or two games in the U.S. Open Cup, a tournament involving teams from all levels of American soccer.

Cruz, a right wing, has started 10 league matches this season, with one goal and two assists.

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“Running full speed and stopping abruptly is never going to be seven days — it’s going to take a while,” Olsen said.

Right back Robbie Russell (hamstring) was on an exercise bike after missing Saturday’s game, and “his might be a while too.”

Andy Najar (groin) and Chris Pontius (gluteal muscle) didn’t practice, but Nick DeLeon (hamstring) and Emiliano Dudar (hamstring) participated.

*Kenny Mansally, a 23-year-old outside midfielder and defender who spent 4 1/2 years with New England, began a week-long tryout. Mansally, who has played for Gambia’s youth and senior national teams, was waived by the Revolution this month. He played for United in a reserve match Sunday in Foxborough, Mass.

“Just because we have depth and we’re doing okay doesn’t mean we are going to stop looking at guys and trying to get better because we still have a ways to go,” Olsen said. “We’re always looking for good talent.”

*Najar wasn’t called up by Honduras for the June 2 friendly against El Salvador at RFK and two subsequent World Cup qualifiers.

“I was very disappointed when I heard that,” Olsen said. “I think he has earned a call-up, but he’s got the Olympics to look forward to [with Honduras’ under-23 squad] and he’s got D.C. United to look forward to.”

*Dwayne De Rosario was named MLS player of the week after recording three goals in two victories.

*Center back Dejan Jakovic, who last weekend returned from an ankle injury, was added to Canada’s roster for the June 3 friendly against the United States in Toronto and two qualifiers.

*If results fall in its favor this week, United (24 points) could claim first place by itself for the first time since June 2009. It would come with an asterisk, however: United has played two more matches than New York (25) and three more than Sporting Kansas City (22).

This week, New York is home against Chivas USA on Wednesday while Kansas City hosts San Jose on Sunday.