Celtic are to face Chelsea, Liverpool, Manchester United and Roma in North America as part of their most prestigious pre-season tour to date.
Celtic and Manchester United have often met in friendlies
It is part of a tournament that builds on last year's successful two-match tour, when Celtic played Manchester United and Boca Juniors.
Celtic will face Chelsea in Seattle on 24 July, Liverpool in East Hartford on 26 July then face Manchester United.
That is on 28 July in Philadelphia. They play Roma in Toronto on 31 July.
The tournament is organised by US sports agency Champions World and David McNally, Celtic's head of sales and marketing, says it will further raise the club's profile in North America.
"Our research indicates that we have over one million fans in North America and we will be undertaking a number of initiatives to build on these very strong foundations," he said.
"As well as running soccer camps in each city, attended by 4,500 American children, we will be offering members of Celtic's 'World Huddle' membership scheme the first opportunity to buy tickets for what are likely to be sell-out matches."
Last year's match against Manchester United is Seattle attracted a crowd of 66,700.
The Champions World series, which also featured AC Milan, Barcelona and Juventus attracted 450,000 spectators and was broadcast to more than 70 million households in the US and more than 50 countries worldwide.
AC Milan and Bayern Munich will also be taking part this year.
Celtic will be based in Seattle and Providence, near Boston, during their 13-day trip, which starts on 19 July.