He wasn't eligible to make an MLS appearance the club until 2012.
Berry made his first MLS appearance against Chivas USA.
He was released by the club in February 2009, having made just two MLS appearances.
Mattocks scored six goals in his first nine MLS appearances in 2012.
Valentino asked for and was released before the 2010 season to play for Tampa without ever making an MLS appearance.
On July 7, 2012, against the Colorado Rapids, Steve Zakuani made his first MLS appearance in 15 months and played with 5 minutes left of the game.
Despite said problems, Ben Olsen was able to make one MLS appearance against the Los Angeles Galaxy on 28 June 2008.
He moved to the San Jose Earthquakes for the 2005 season and made 18 MLS appearances for them, scoring two goals.
He earned his lone MLS appearance on October 12 against Real Salt Lake.
He did not make any MLS appearances for Kansas City, but played in one reserve league match.