CARY, N.C. -- Cesar Elizondo scored the go-ahead goal in extra time Wednesday night to lead the Carolina Railhawks to a 3-1 win over Chivas USA in the fourth round of the U.S. Open Cup to complete a sweep of Major League Soccer's two clubs from Los Angeles.
Carolina, which beat the Los Angeles Galaxy in the third round for the second straight year May 29, will play at Real Salt Lake in a quarterfinal June 26.
Ty Shipalane put Carolina ahead in the 13th minute, scoring into an open net on a one-touch assist from Brian Shriver.
Brian Ackley added an insurance goal for the NASL team with a header off Floyd Franks' corner kick later in extra time.
Defending Open Cup champion Sporting Kansas City also lost to lower-division opposition Wednesday. Long Tan scored in the second minute and third-division Orlando City SC won 1-0.
The Lions beat an MLS club in Cup play for the second straight time and will next face either Chicago or Columbus. It also marked the second time in three years Sporting was knocked out of the tournament by a USL PRO club.
Orlando City's Miguel Gallardo made four saves, two a flurry at the 60-minute mark. He blocked C.J. Sapong's close-in redirect, then made a diving save on Paulo Nagamura's long follow-up.
Tan scored the game-winner on an assist from Adama Mbengue, putting the ball under Eric Kronberg and just inside the left post.
Teal Bunbury made his first appearance for Sporting since tearing his left ACL late last August, coming on as a 75th-minute substitute.
In other U.S. Open Cup action Wednesday, Kenny Cooper scored twice to lift FC Dallas to a 3-0 win over the Houston Dynamo.
Cooper scored on a right-footed shot from 3 yards out in the 39th minute and headed in Michel's corner kick in the 59th minute from inside 6 yards, giving him seven goals in U.S. Open Cup play.
FC Dallas was without starting goalkeeper Raul Fernandez, who was with Peru's national team.
Dwayne De Rosario recorded a hat trick to give struggling D.C. United a 3-1 win over the Philadelphia Union.
De Rosario put United ahead in the 24th minute with a blast from outside the box into the lower left corner of the net. A long scoring drought by both teams ensued until De Rosario gave United a 2-0 lead with his second goal in the 75th.
Jack McInerney scored a minute later to pull the Union back within a goal, but De Rosario completed his hat trick in the 85th and D.C. was able to hold on.
With the win, United advances to a quarterfinal matchup against the New England Revolution, who beat the New York Red Bulls 4-2 on Wednesday.
Rowe put the Revolution up early when he grabbed a pass from Gabe Latigue and fired a shot past goalkeeper Ryan Meara in the fourth minute. Espindola tied it in the 30th before Rowe scored again in the 37th.
Imbongo scored when he collected a long pass from Kalifa Cisse and beat Meara.
Real Salt Lake also advanced to the quarterfinals after rallying for a 5-2 win over Charleston on Wednesday night. Rookie forward Devon Sandoval scored twice, including the go-ahead goal in overtime.
Dane Kelly and Nicki Paterson scored in the first half for the Battery.
Sandoval got Salt Lake on the scoreboard in the 66th minute to cut Charleston's lead to 2-1. Plata tied it with a penalty kick in the 79th.
Sandoval put Salt Lake ahead for good in the 97th, Stephenson made it 4-2 in the 105th and Morales capped the scoring with a penalty kick in the third minute of stoppage time in the overtime.
Nanchoff scored in the ninth minute on a nifty left-footed volley into the right corner. Jewsbury, who subbed in during the second half, scored on a left-footed blast in the 55th.
Portland goalkeeper Milos Kocic had a relatively stress-free night with the Timbers outshooting Tampa 12-3.
The Rowdies couldn't keep the magic going after shocking the Seattle Sounders in the third round.
The Timbers will play at FC Dallas in the quarterfinals June 26.
Severe weather in the Chicago area forced postponement of the cup match between the Chicago Fire and Columbus Crew until 1 p.m. ET Thursday.
Lightning was observed beginning early evening around the arena, located in Chicago's southwest suburbs. A U.S. Open Cup official said both teams agreed to the postponement for the safety of players and fans.
Open Cup rules state a postponed game must be played within 24 hours.
Information from The Associated Press was used in this report.