Afterwards, the domination in the competition that the club had enjoyed began to lessen as more teams strengthened. The trophy was reclaimed in 1890 with a replay win over Vale of Leven and the club's 10th and final success came in 1893 with a 2–1 win over Celtic at Ibrox. In the same year, professional football was acknowledged by the SFA. Three years previously, the Scottish Football League had been formed but Queen's declined to join, stressing their amateur principles Queen's Park joined the Scottish League in 1900 and took part in the 1900–01 season (being added directly to the top division rather than the lower division).