Ian McGeechan is relishing next year's New Zealand tour as he prepares for his fourth Lions trip in a coaching role. McGeechan masterminded Test series victories over Australia (1989) and South Africa (1997), sandwiching defeat by the All Blacks in 1993.
"The Lions are unique, and it is a great honour to be involved again," said the 57-year-old Scot.
"It's such a special experience for coaches and players. I'm excited about it. It's going to be a huge challenge."
Lions supremo Sir Clive Woodward has entrusted McGeechan with heading up the midweek team, which is a key role in producing any overall tour success.
It will be the job of McGeechan, Gareth Jenkins and Mike Ford to ensure that players involved in midweek action put pressure on more established names for Test selection.
McGeechan's Lions record is remarkable. Apart from his coaching triumphs, he played in all four Tests on the successful 1974 South Africa tour, and all five Tests in New Zealand three years later.
"The Lions is about four countries coming together, and once you are together, it is about one focus and bringing out all the qualities and strengths," added McGeechan.
"It's down to the people and the environment you create. The Lions have always had good Test teams, but it is often the little things that make the difference."
McGeechan's appointment has been welcomed by his employers, the Scottish Rugby Union, who will also provide the Lions head doctor in James Robson, physiotherapists Bob Stewart and Stuart Barton and video analyst Gavin Scott.
"Ian McGeechan is one of the greatest Lions," said SRU chief executive Phil Anderton.
"In New Zealand, he will be an assistant coach, ensuring that Scottish rugby is represented at the very apex of the game.
"Scottish rugby has to be at the top table - to listen, learn and share knowledge - and we can benefit at all levels of the sport from Ian's involvement with the Lions."