The Spain international will be forced to watch the next two European games from the sidelines for the Blaugrana after he was handed a suspension
The Spain international was shown a direct red card by Turkish referee Cuneyt Cakir after allegedly lashing out at an opponent in the Catalans' 2-0 victory over the Aguias.
UEFA's Control and Disciplinary Body has now looked into the matter, and consequently made the decision to suspend Busquets for two games.
The 24-year-old will miss the home game versus Celtic on Oct. 23 as a result, while he will also have to sit out the return two weeks later.
Barcelona currently sits atop the table in Group G with six points from two games. Celtic sits second in the section with four points.