The Chicago Fire Soccer Club announced Friday that Mike Matkovich and Leo Percovich will return to the club as Frank Klopas' assistant coaches for the 2012 Major League Soccer campaign.

As Klopas prepares for his first full season as Fire head coach he has grown his staff to include two full-time assistant coaches. Both coaches will join Klopas at this weekend's MLS Combine in Ft. Lauderdale, Fla., ahead of the 2012 MLS SuperDraft on Thursday, January, 12 at 11:00 AM CT (ESPN2/MLSsoccer.com) in Kansas City, MO.

Matkovich, 49, rejoins the Fire as an assistant coach, having previously served in the role for the club from 2009-10. The longtime Chicago-area coach played his first role with the club as the head coach of the Chicago Fire PDL from 2002-06. Hailing from Frankfort, IL, Matkovich spent 2011 as the Director of Coaching for the Chicago Fire Juniors-South and as an assistant coach for the club's Academy sides.

Entering his second season as an assistant coach with the Fire, Percovich, 43, is a former Copa Libertadores and Uruguayan First Division champion. A native of Montevideo, Uruguay, he served as a goalkeeper coach with the Colorado Rapids (2006-2007) and Chivas USA (2008-2009) before joining Toronto FC as an assistant coach in 2009.