 Complete the following phrase:  The competition began on 11 November 1871 when four matches were played. Fifteen clubs had entered but three of those withdrew so there were just twelve actual participants. They included the leading Scottish club, Queens Park of Glasgow who reached the semi-final in which they drew 00 with the eventual winners Wanderers. A replay was required but Queens Park could not afford the travel costs and withdrew. The other semi-final between Royal Engineers and the original Crystal Palace was also drawn and the Engineers won the replay 30. The 