Thomas Tuchel has questioned the Premier League's ownership tests following Chelsea's 1-0 victory over Newcastle at Stamford Bridge. Head coach Tuchel reaffirmed his commitment to the Blues on Sunday despite the club's uncertain future due to the UK government sanctions imposed on owner Roman Abramovich. Abramovich has had all his UK assets frozen barring Chelsea in the wake of Downing Street claiming to have proven the Russian-Israeli billionaire's links to Vladimir Putin. Russia's continued invasion of Ukraine, coupled with Saudi Arabia carrying out 81 public executions on Saturday, made for a tense backdrop to the Blues' last-gasp win over the Saudi-bankrolled Magpies. The Premier League insisted Newcastle's owners, the Saudi Arabia Public Investment Fund, proved suitable separation from the Saudi state before its takeover, despite crown prince Mohammed bin Salman chairing the PIF. Russia's war in Ukraine has shifted the geopolitical picture to the extent where Chelsea must now operate under a stringent Government licence to ensure Abramovich does not profit from the Blues. When asked to appraise the different situations of the two clubs, with Saudi Arabia engaged in military conflict in Yemen, Tuchel replied: "Wow, that is a big one. "Unfortunately, the situation is like this also for the owners of Newcastle and that affects things, yes. "What can I say? I don't want to point the finger because comparing yourself or blaming others does not make the situation for us a different situation. "The statement (issued by the club a fortnight ago), that we condemn war and the actions from Russia towards Ukraine, there is no doubt. "But we're facing the consequences actually at the moment and this is where the focus is. I hope you can understand. "At some point, we need also to trust the process. For example, we need to trust the process of the Premier League as to who owns a club. "Maybe we need to ask questions about the process of how this goes. Maybe it's an ongoing process and it will never end. It just reminds us to be aware and conscious about it, and not look away." Chelsea will next week continue negotiations with the UK Government over relaxation of the special licence conditions, to help the Blues operate close to normal fashion. The Government will oversee Chelsea's sale, with two potential buyers - Nick Candy and Sir Martin Broughton - in attendance on Sunday. Blues boss Tuchel had insisted in midweek he could only go day to day on his own future, but the 48-year-old has now confirmed he will stay at Chelsea as he expects a sale to be carried out in standard timescale. Australian Associated Press