Which is around 10 minutes and the match will continue with the only team contains 10 players.
We can see that the blue card has been implemented in English football and there are several players who have received it, maybe in the future there will definitely be controversy regarding the blue card but FIFA itself as the world football federation still has not approved it.
FIFA denies the existence of blue cards in major or elite competitions and currently I have no further confirmation regarding the news about blue cards, various media or news broadcasts about football that are really busy discussing blue cards are England.
There, trials are carried out in several lower class football events, but this will become part of football, although it cannot necessarily be applied in championships or big competitions.
I myself don't really agree with the implementation of blue cards because it can make the match less of an interesting competition, this would be the same as red card but the player is only out temporarily and makes the opposing team superior.
I think that blue card would be really detrimental if it was received by the goalkeeper, of course this makes other players replace the goalkeeper during time and that feels very ridiculous.
Me too I can't really say that I agree with the concept of the blue card. It's a bit unbalanced but also some things need to be put into consideration too.
For instance, the strategic fouls that happen to end advantages the other team might take in the field really are something that doesn't get any specific punishment. So does pretending to get hurt. These things happen often in football because there's a low risk, high reward scenario that plays out usually if players use these things smartly.
If players do a foul that doesn't severely injure another player, or pretend to get hurt to get a free shot, they might get a yellow card, and if they're good for the rest of the match, they get off without any consequences. But this could be solved more easily if UEFA and FIFA for example gave out guidelines that for these occasions, even with the use of VAR, a red card can be given out. This way the team will have to use a substitution which also costs them, but won't be faces with forcibly playing with fewer players for 10 minutes. This solution also has its disadvantages because red card means the player misses the next match in many competitions, which is harsh.