Many articles already discuss some Liverpool's players suffered injuries,
Liverpool has one of the fittest sides this season, they have played very competitive football both in the EPL and UCL likewise Real Madrid. I expect both teams to be very fit for the finals which we all expect to be thrilling. Predicting the winner is not so easy for me as the finals draw closer, but one thing is certain that both teams will play their best. The whole of English football will be behind Liverpool.
It's true that Liverpool are a strong team with reserve players, but what I read in the article was Thiago Alcantara got injured against Wolves and at that time was replaced by James Milner, this is still in the process of checking the medical team whether Thiago Alcantara is ready for the UCL final later, but for me by losing Thiago Alcantara Liverpool will not be weak.
This bet is actually interesting I also can't predict and I haven't decided where to bet, on other occasions it's also quite possible.