Australia winger Digby Ioane has been handed a one-match by the Reds following an incident in Melbourne on Saturday.
Reds made the decision on Monday after holding talks with Ioane, with the 27-year-old now set to miss the clash with the Western Force in Brisbane.
A statement from the Reds read: "Digby has taken responsibility for his actions and is cognisant of the high standards and organisational values expected of each member of the Reds squad both on and off the field.
"These expectations have also been reinforced to all members in the Reds squad on Monday afternoon.
"The decision by QRU to stand down Digby directly relates to the expectation on him as a senior member of the team, and is not an outcome of enquiries made by Victorian Police over the weekend.
"Digby will continue to train with the Reds and will be available for selection next week in the team's round six Super Rugby match against the Bulls at Suncorp Stadium."