Danish midfielder Christian Sivebaek, 23, acquired by the Sounders on a transfer, is expected to provide depth out wide.

Sounders FC’s roster construction continued Wednesday with the acquisition of midfielder Christian Sivebaek on a transfer from Denmark’s FC Midtjylland.

Sivebaek, 23, will be added to the roster upon receipt of his visa and international clearance. The terms of the deal — first reported by Danish media two weeks ago — were not disclosed. Seattle had to pay a transfer fee in the move, but it wasn’t believed to be very expensive as Midtjylland had reportedly given Sivebaek permission to seek a new team.

In a news release, Sounders FC technical director Chris Henderson called Sivebaek an up-and-comer.

“He is a good one-versus-one dribbler who can provide consistent quality service to our strikers,” Henderson said. “He has good speed and physical presence.”

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The 6-foot-3 Sivebaek is expected to provide depth as a wide midfielder, but also has some experience as a right back. He scored six goals in 80 league games for Midtjylland and two goals in 19 games with Denmark youth national teams.

Sivebaek visited Seattle in December and, in the release, called the Sounders “one of the best and biggest teams in America. I am very impressed by the professionalism of the club, the high quality of players and staff, and the great number and passion of their fans.”

Open Cup makeover

U.S. Soccer announced a number of changes to the 2012 U.S. Open Cup as Sounders FC seeks an unprecedented four-peat in the knockout-style tournament.

The field was expanded to a modern-era record 64 teams and all 32 U.S. pro teams — 16 from MLS — are included. Also, a bidding process to host games will be replaced by random selection until the semifinals.

Seattle’s first game will be May 29 in the third round.


• Tickets for Sounders FC’s March 7 home leg against Mexico’s Santos Laguna in a CONCACAF Champions League quarterfinal go on sale at 10 a.m. Jan. 30.

• Olympia native Kasey Keller has been inducted to the U.S. Youth Soccer Hall of Fame as a member of its 2011 class. The Sounders FC broadcaster and former goalkeeper started playing youth soccer in Washington as an under-7 player and will be honored at an awards gala Feb. 17 in Boston.

Joshua Mayers: 206-464-3184 or jmayers@seattletimes.com.

On Twitter @joshuamayers