Former Arsenal pair Sead Kolasinac and Shkodran Mustafi were among Schalke players attacked by ultras after a 1-0 defeat to Arminia Bielefeld confirmed relegation.
The Sun reports a small section of Schalke fans mobilised after the match in order to channel their fury toward their underperforming team, who will play next season in Bundesliga 2.
A 600-strong mob of Schalke fans reportedly waited for the team bus to return to their Veltins-Arena home in Gelsenkirchen at 1am before unloading a torrent of abuse.
Kolasinac and Mustafi were among the stars to be targeted, as fans made their move on the players as soon as they left the vehicle.
Several players were reportedly left bloodied after being struck with objects during the onslaught, while eggs and fireworks were thrown.
