The Spanish side - currently eighth in La Liga - come to St. James' Park for a 12.30pm (GMT) kick-off in United's final warm-up match before the 2022/23 season resumes following the World Cup break.
And the game will be available to supporters all over the globe to watch for free on NUFC TV, with commentary from BBC Newcastle's Matthew Raisbeck and former Magpies defender John Anderson.
Supporters will need to be logged in to their NUFC TV account to watch the match, and are strongly advised to log in as early as possible to avoid congestion. If you don't have an NUFC TV account, you can sign up for free here.
NUFC TV is compatible with Chromecast, meaning you can stream the game via your television.