Final answer:
In professional soccer, a yellow card is a warning and does not require a player to sit out. If a local soccer league has a specific rule for a three-minute sit-out after a yellow card, nothing extra happens if a goal is scored against the penalized player's team.
Step-by-step explanation:
The situation you described is not a scenario that happens in professional soccer. In professional soccer, a player who receives a yellow card is not required to sit out for any amount of time; instead, they are given a warning that any subsequent serious offense may result in a second yellow card, which would lead to a red card and ejection from the match. However, if you are referring to a local or recreational league that has its own specific rules where a player with a yellow card must sit out for three minutes, typically nothing extra happens if the team gets scored upon during the player's penalty, aside from the normal consequences of the opposing team scoring a goal. The player's team will have to continue with one fewer player until the penalty time is up.