Sergey Karasev will take charge of Wednesday evening's UEFA Champions League Matchday 1 clash between Legia Warsaw and Borussia Dortmund. The 37-year-old Russian has a wealth of experience on the international stage.

Karasev oversaw matches at both EURO 2016 in France and the 2016 Olympic Games in Brazil. Wednesday evening's clash will be his 49th game in European competition and his 15th appearance in the UEFA Champions League. On 14 February 2013 he was the match referee for the UEFA Europa League draw between Borussia Mönchengladbach and Lazio (3-3), in which he correctly awarded Gladbach three penalties. (br)