spence attacks in straight lines and sets all his attacks up behind a double jab.
when you see him double jab, it means he is riding on rails in a straight line to set up an attack.
when spence is riding on rails and coming in behind a double jab to attack, thats the giveaway for garcia to press down and pivot on his front foot.
this lets him turn off of a straight line before spence can continue riding on the rails so to speak to get to his target. since spence likes to set up all his straight line attacks behind the double jab, it gives garcia a warning when to pivot and turn off the straight line.
if spence can only attack garcia in straight lines, he will be turned repeatedly.