Who: D.C. United (8-4-3, 27 points) at Union (2-7-2, eight points)
When: Saturday, 7 p.m.
Where: PPL Park, Chester
TV: CSN; Galavision
Outlook: The first match of the John Hackworth era is actually a rematch: The Union defeated D.C. United, 2-1, in U.S. Open Cup play two weeks ago, a physical affair that took extra time to settle in Maryland. United hasn't forgotten that game - especially midfielder Brandon McDonald, who received a red card after getting into a skirmish with Union defender Carlos Valdes, who will play in this match, but is out for the June 26 U.S. Open Cup quarterfinal game against the Harrisburg City Islanders. "We are going in with a chip on our shoulder," McDonald told his team's website. "They took away the Open Cup from us, which is something we really wanted collectively as a group. So we have to come out and prove that that was a fluke." . . . Dejan Jakovic and top goal scorer Dwayne DeRosario return from a two-week stint with the Canadian national team during a break from MLS play for FIFA World Cup qualifying. . . . The Union also got defender Porfirio Lopez (Costa Rica) and Gabriel Gomez (Panama) back from World Cup qualifying. . . . United goalkeeper Bill Hamid ranks second in the league overall with a 0.83 goals-against average and a pair of shutouts in six matches.