How to Perform Upper Cuts
Uppercuts are useful when thrown at close range, because they are considered to cause more damage. Additionally, it is likely that a boxer would miss if the uppercut is thrown when the opponents are apart. Uppercuts usually do more damage when landed to the chin.
To perform upper cuts you need to press two buttons at once. On PS4 hold Square and X or Triangle and O. On Xbox One press A and X or B and Y. Pressing these two buttons allows you to perform uppercuts with fluidity and power.