I don't bet once they are live, I will place the bets prior to the game and even before a day and then just let it be.
a lot of the people also do this and besides i think a lot of sites have restrictions that you only can bet before the match ends so that their system doesn’t get abusedQuote
And the team looking to give a comeback can be real but for a bettor it can be deceiving and create confusion like which team should I bet or if you bet already on the favorite but the other team is making the comeback then you will be tempted to make another bet on different platform to nullify the loss of previous bets and so on. That is why it's better to keep it simple and just enjoy the intense game moments rather than switching bets. 
if the other team is clearly the favorite, the team might be a lot more motivated and appear as if they’re finally gonna win but sometimes they still lose despite a very good game