Chelsea manager Enzo Maresca says he is "not happy" that opponents Real Betis have been given two days of extra preparation for next week's Conference League final.
La Liga has accepted a request from Betis to bring their final league match against Valencia - originally scheduled for Sunday - forward to Friday evening (20:00 BST).
Chelsea, by contrast, travel to Nottingham Forest - who, like the Blues, are chasing Champions League football - on Sunday, three days before the final in Wroclaw, Poland on Wednesday, 28 May.
Sunday's final round of Premier League games must all kick off at the same time (16:00 BST) to prevent any side gaining an unfair advantage over their rivals.