Kwesi Appiah's early goal was enough as AFC Wimbledon defeated Blackburn 1-0 at Ewood Park in their first ever meeting.Appiah reacted quickest in the 16th minute to his blocked shot before firing into the top corner as Neal Ardley's men won on the road for the first time this season.It was a victory the visitors just about deserved, despite a late onslaught from the hosts, during which George Long pulled off an outstanding save from Bradley Dack to guarantee the points.The hosts started strongest, with Dominic Samuel's long-range effort forcing Long into a first-minute low save, but the Dons scored with their first chance.Appiah's first shot was blocked but he made no mistake with an emphatic close-range finish for his second goal of the season.Dean Parrett fired just wide before Samuel directed a free header over the bar.Appiah could have had a second after the break but David Raya tipped wide, and Dack thought he had equalised but Long did brilliantly to parry his deflected header six yards out.