Liverpool target Naby Keita caused RB Leipzig training to be abandoned after his "brutal foul" on a team-mate.
German reports claim the players were sent back to their hotel after the session in Austria was called off by head coach Ralph Hasenhuttl after Keita's "revenge" challenge on midfielder Diego Demme, which followed Demme's strong tackle on Keita moments earlier.
Demme was reported to have cried out in pain, before receiving treatment and leaving the pitch with his right knee bandaged. The Bundesliga club later confirmed Demme suffered a bruised knee but had escaped further ligament damage.
Keita wants to move to Liverpool but a senior official at RB Leipzig has told Sky Sports News that Naby Keita will not be sold in this transfer window.
Leipzig revealed they rejected a £66m offer from an unnamed club for Keita, while Sky sources understand Liverpool have had three bids rejected for the midfielder.
The Guinea international has a £48m release clause in his contract, although that does not become active until next summer.