Scottish referee Willie Collum has been handed one of the biggest appointments of his career after being told he will officiate tomorrow's Champions League quarter-final between Monaco and Juventus.

The 36-year-old Glasgow official will be the man in the middle for the last-eight second-leg clash between the French outfit and Massimiliano Allegri's Serie A champions at the Stade Louis II.

The Italians take a 1-0 lead to Monte Carlo after Chile international Arturo Vidal struck the only goal in last week's Turin opener.

Collum will will lead a refereeing team that includes Irish assistant referee Damien McGrath and Scottish linesman Graham Chambers, fourth official Alastair Mather and additional assistants Bobby Madden and Kevin Clancy.

On the domestic front, he has already taken charge of the 2013 Scottish Cup final, as well as the Scottish League Cup final the year before, but tomorrow's match will be his most high profile European fixture.

Highly rated by Uefa, he has already taken charge of major Champions League fixtures involving Bayern Munich, Barcelona and Atletico Madrid, as well the European Championship qualifiers between Montenegro and Sweden and Romania and Hungary.

However, his next date on the continent comes just three months after the religious education teacher made a controversial start to 2015 on home soil.

Collum awarded four penalties and sent off three players in his first two matches of the new year, but saw the red cards he gave to St Mirren's Kenny McLean and Motherwell defender Stephen McManus overturned by the SFA's judicial panel.

He was also criticised by Hibernian boss Alan Stubbs last month after allowing Rangers' winning goal in a 2-0 Easter Road win stand, despite an apparent foul by Gers defender Lee Wallace on Paul Hanlon in the build-up.

In 41 games this season, Collum has dished out 121 bookings as well as 15 red cards.