BRITISH referees Mark Clattenburg, Michael Oliver and Craig Thomson will take charge of matches in the second round of Champions League group stage fixtures on Tuesday.
England’s leading official Clattenburg will handle Group F’s marquee showdown between Borussia Dortmund and holders Real Madrid in Germany.
Fellow countryman Michael Oliver will make his refereeing debut in the Champions League proper when Sporting Lisbon host Legia Warsaw in Group F.
Scotland’s Thomson has been assigned to Copenhagen against Club Brugge in the Danish capital.
In Group G’s other game, Cuneyt Cakir of Turkey will be in the middle for English champions Leicester City’s first European home game against FC Porto.
And Spanish referee Antonio Miguel Mateu Lahoz has been appointed to Tottenham’s first away game in Group E against Russian side CSKA Moscow.
Clattenburg will encounter Real for the first time since their victory over Madrid rivals Atletico on penalties in last season’s final at Milan’s San Siro.
It was one of three major showpiece games he has received during a memorable year for the Newcastle-based whistler – including the FA Cup Final at Wembley and Euro 2016 Final at the Parc des Princes.
The 41-year-old has enjoyed a mixed start to the Premier League season but was criticised for failing to award penalties in Leicester’s goalless draw with Arsenal and the Manchester derby at Old Trafford.
He will be ably assisted at the Westfalenstadion by his regular linesmen Jake Collin and Simon Bennett, additional assistants Andre Marriner and Lee Mason, as well as fourth official Harry Lennard.
Meanwhile, Oliver will arguably handle the biggest game of his career thus far, having never previously ventured beyond the qualifying stage of Europe’s premier competition as the man in the middle.
The Northumberland whistler – who went to Euro 2016 as an additional assistant referee – incurred the wrath of Manchester United boss Jose Mourinho after their 3-1 defeat at Watford earlier this month.
He is used to the big game occasion with six games at Wembley under his belt at the tender age of 31, while his display was credible in Arsenal’s 3-0 win over Chelsea last weekend.
Oliver will be able to lean on the experience of Stuart Burt and Gary Beswick, additional assistants Craig Pawson and Jon Moss, as well as fourth official Stephen Child.
Elsewhere, Thomson has played second fiddle in Scotland this year to Willie Collum, who was preferred as their Euro 2016 representative and the first Old Firm derby of the season between Celtic and Rangers.
It completes a busy week for the former lawyer, who oversaw Aberdeen’s League Cup win over St Johnstone on Thursday night and Partick Thistle’s 1-1 draw with Motherwell in the Scottish Premiership on Saturday.
The Paisley referee will be joined by David McGeachie and Alan Mulvanny, additional assistants Steven McLean and Andrew Dallas, and Graeme Stewart as fourth official.
And Leicester will be in capable hands for their Champions League bow at the King Power Stadium, in the form of experienced disciplinarian Cakir.
The insurance agent, who took charge of Barcelona’s 3-1 win over Juventus in the 2015 final, made history in the competition last term by becoming the first referee to oversee consecutive semi-final matches.
Istanbul-based Cakir has also handled last-four games at Euro 2012 and the 2014 World Cup, while he was also selected for Euro 2016 and the summer’s Olympic Games men’s football tournament in Rio.
But he has a history of upsetting English teams in the past with controversial decisions against them, not least Manchester United for the dismissal of Nani in their last-16 defeat against Real Madrid in 2013.
Cakir’s team of officials consists of Bahattin Duran, Tarik Ongun, Huseyin Gocek, Baris Simsek and Emre Eyisoy.
Spurs’ trip to Moscow presents another testing encounter for Lahoz, who has taken over the mantle of Spain’s number one official following the retirement of Carlos Velasco Carballo.
The Valencia-based referee has officiated four El Clasico games between Barcelona and Real Madrid, and is a familiar face to English teams having encountered three in his four Champions League games last season.
He controlled United’s 4-0 play-off second-leg win at Club Brugges, Chelsea’s 2-1 defeat at Porto in the group stages and Manchester City’s 3-1 win at Dynamo Kiev in the quarter-finals.
You can view the full list of match official appointments here.