Rangers will be without leading scorer Alfredo Morelos when they face Celtic in a huge Old Firm derby on Sunday.

The striker sustained a thigh injury while away on international duty with Colombia and will not be fit for a potentially decisive Scottish Premiership clash at Ibrox.

Morelos played no part in Colombia's victories over Bolivia and Venezuela, which proved to be in vain as they failed to qualify for the World Cup in Qatar.

Giovanni van Bronckhorst on Friday confirmed the 25-year-old will miss the showdown with Glasgow rivals Celtic, who are three points ahead of Rangers heading into the contest.

"Unfortunately for all of us he won't be with us on Sunday, we won't have him back in the next couple of weeks," said the former Netherlands midfielder.

"Morelos will be assessed and hopefully we can give more news after the weekend."

Morelos has scored 11 league goals for the defending champions this season.