This summer has already seen some unexpected games building up to the new football season.
Kuwait, 156th in Fifa’s world rankings, beat non-league Marlow in a friendly earlier this month, while League One Accrington Stanley took on Marseille, the nine-times champions of France.
But have Atherton Collieries, a non-league club near Wigan, pulled off an even bigger coup?
They were recently managed by newly appointed West Brom boss Slaven Bilic.
Al-Ittihad have a Twitter following of 3.7 million, compared with Atherton Collieries’ 7,264.
They play at the 62,000-capacity King Abdullah Sports City in Jeddah – a world away from Colls’ 2,500-capacity Alder House, where Wednesday’s friendly is taking place.
Al-Ittihad are currently based in nearby Bolton for a series of friendlies against Leeds, Bury and Bolton, and wanted to fit in one last match before returning to Jeddah.
“Something like this doesn’t come around often,” Colls secretary Emil Anderson told BBC Sport.
“It’s like the unknown for us and it will probably be the unknown for them as well. It’s going to be a memorable night for the club.”