Which country is Celtic from, and which league do they play in?

Celtic, Beşiktaş's opponent in the UEFA Europa League, has drawn the attention of football fans ahead of the match. Celtic is a professional football club based in Glasgow, Scotland. Founded in 1887, the club is among the most recognized teams in Scottish football. The club also has strong historical ties to its Irish roots.

The club plays its matches at Celtic Park in Glasgow. The team is known for its green and white colours and its horizontal striped shirt.

Celtic competes in the Scottish Premiership, Scotland's top-level football competition. The league is organized by the Scottish Professional Football League (SPFL), and Celtic is one of the country's leading clubs.