Real Madrid started this game well to secured first goal within few minutes, but this red card one of the Real Madrid striker collect will make Real Madrid to struggle to win this game. If you watch the game very well, you will know that Mbappe did not purposely commit that offense which is a mistake any professional football player can make in any game, and we have seen cases like this when 10 players turn to beat 11 players at the end.
If truly Real Madrid have potential defenders, it will allow them to manage to win this game, because Alaves don't have professional strikers that can break into Real Madrid goalpost to equalize the goal.
Real Madrid really struggled after the red card, Alaves failed to take on the opportunity of an extra man, Alaves played well after the red and dominated Real Madrid, even in the second half, Real Madrid players were just running around like headless chickens and their came the foul on Vini after he was caught instead of the ball, that was a big time foul and worse still the defender was the last man and of course the ref checked VAR before giving his verdict which is the correct one. So one game made us to see two red cards. Overall, Alaves was the better team but Real Madrid won the game.
Mbappé was sent out of the match when the match was at 38 minutes, and after that moment the match became tough for Real Madrid because Alavés was really dominating, and they got more space to pressure Real Madrid, but they were unable to turn it into a goal, which was not at first the way they dominated the match.
Once Mbappé got kicked out, I thought they would surprise us by beating Real Madrid in this match, to be sincere, because after Mbappé received that red card, Real Madrid wasn’t doing well as they started the match, and Alavés was dominating then. I believe with what you said, Real Madrid got the chance to win, but Alavés really tried in the match.
However, Manu Sanchez from Alavés also got a red card at 70 minutes, but still Alavés did not look weak after the red card to Manu Sanchez; they were still maintaining the performance, not like Real Madrid, who got weak immediately after Mbappé received his red card.