COMMERCE CITY, Colo. (AP) -- Dillon Serna scored two minutes after entering as a second-half substitute and the Colorado Rapids beat 10-man Sporting Kansas City 1-0 on Wednesday night.
Ike Opara received his second yellow card on a questionable call in the 76th minute. Moments later, Serna, from Brighton, Colorado, rolled in a shot from distance to give Colorado the lead in the 78th.
Colorado (7-2-2) won its sixth straight home game to tie a team mark set in the 2005 season. The Rapids also extended their undefeated streak to seven games.
Kansas City (4-6-2) had its winless run stretched to seven games -- the club's longest since a 10-game run without a victory in 2011. Sporting KC struggled on the offensive side with only one shot on goal.
The Rapids have won the last four meetings in the series