New footage from Pepe's spat with Seydou Keita before Real Madrid and Roma's friendly on Tuesday night could land the Portuguese defender in hot water.
Former Barcelona midfielder Keita, now at Roma, refused to shake Pepe's hand during the pre-match pleasantries and when confronted about it by Real players he appeared to launch a water bottle at Pepe.
However, Keita was supposedly provoked after Pepe spat at him and a different camera angle appears to show an altercation that triggered the fracas.
The bad blood between the duo stems from Keita's stint at Barça and their tumultuous Clásico clashes with Real. Keita accused Pepe of calling him a monkey during the first leg of the clubs' 2011 Supercopa clash.
Roma, beaten 3-2 by Manchester United at the weekend, defeated Champions League winners Real 1-0 in the Guinness International Champions Cup in Dallas.