Glasgow's Hampden Park football stadium will stage athletics events at the 2014 Commonwealth Games after the pitch is raised to make room for a running track, organisers said this week.
The National Football Stadium at Hampden Park will be infilled to a height of around 1.5m, covering the first five to six rows of seats.
This will increase the area available for sports, providing the width and length needed for an International Athletic Federation standard track.
The infill will be a mixture of polystyrene and granular material, and will be used for other purposes when the athletics track is removed after the games.
"With three major stadiums already in the city there is no justification to build a dedicated track and field stadium in Glasgow for the 2014 Commonwealth Games," said Glasgow 2014 Commonwealth Games interim chief executive Derek Casey.
"This solution gives a different way of providing an athletics track in an existing football stadium."
Costs of installing the track, removing it, building a warm-up track and carrying out internal improvements to the stadium come to just over £20M. This is a fraction of the cost of a new stadium.
Football will still be played on the pitch at the centre of the track, but the stadium's capacity will temporarily be reduced from 53,000 to 46,000.