Both teams are on top of the La Liga standings, which are surely present an interesting match. Atletico are favorite for this time because they play at home and have better h2h. But I agree, Bilbao won't just give Atletico a win easily. Bilbao has good statistics where have never lost in the last 16 matches, while Atletico a bit worse than Bilbao, they have never lost in 13 last matches. Draw is possible happen if we calculate on their previous match, but because the main player Bilbao have injured (Oihan Sancet), I think it will be very beneficial for Atletico because they play with complete player, and have a onfire key player like Julian alvarez.
Athletic Bilbao at the fourth position is less mentioned as a competitor for La Liga tile that only for Barcelona, Real Madird and Atletico Madrid in many discussions but they actually have not too small chance to join this title race. If they win against Atletico Madrid in this direct match, it will be their big step toward the title competition especially if both Real Madrid and Barcelona wont' get three points through their matches this week.
Without a doubt, personally I think Ancelotti was looking after Mbappé, because he wants to give him everything in the Liga and in the UCL, of course I liked that Arda played, Endrick scored the great goal, for me things are fine with them both, Arda needs more minutes, and Ancelotti knows it, for me Arda has more technique than Endrick, it would be good if he entered the UCL matches because I know he can make the difference.
For me the big match will be between Barcelona and Atlético, however I think Barcelona has the advantage this time, but it is a match that can go to Atlético if they play with everything they have from start to finish.
Mbappe is an ambitious player and he will want to win maximum titles as he can, and surely both La Liga and Champions League are big titles. Winning both big titles will increase competitiveness for Mbappe to win Ballon d'Or next year. This personal award is one of targeted awards in Mbappe career and is one of main reasons he decided to leave PSG and join Real Madrid last summer transfer season.