Aston Villa have released a strict warning to any Celtic fans planning to watch Wednesday's Champions League match between the sides in the home end.
Brendan Rodgers takes his side to Birmingham secure of a place in the knockout stages of European football's premier club competition after a 1-0 win over BSC Young Boys in Glasgow's east end last Wednesday.
Celtic's game against Dundee on Saturday was postponed, so they travel to Villa Park with a full week of rest.
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Supporters are set to head for England in their droves, although Aston Villa have today released a strict warning about any travelling fans who plan to sit in the home end.
A club statement read: "Aston Villa would like to remind all supporters attending Wednesday’s Champions League fixture against Celtic that tickets purchased for home areas via Aston Villa are for Aston Villa supporters only.
"Tickets are sold for the sole use of the individual named on the ticket and the club does not permit them to be resold.
"Any fans found to be forwarding their ticket for use by visiting supporters will be prevented from purchasing tickets for the rest of the season at least. For clarity, this also includes the resale of tickets on secondary ticketing platforms who only seek to inflate the face value price.
"Season Ticket Holders will also have their season tickets revoked should they be found selling their seats to visiting supporters.
"Not only is touting risking your ability to attend future matches at Villa Park, it is illegal and West Midlands Police will be informed. The club would also request that supporters make the club aware of any fans who are attempting to sell their tickets either directly or via a third party.
"The club would urge all supporters, for the safety of all those attending matches at Villa Park, to respect the need for segregation."
Celtic head into the matchday eight clash without star-striker Kyogo Furuhashi. He is set to complete a move to Rennes.
Daizen Maeda will also miss the game because is suspended, having been sent off against Young Boys last time out.
Such unavailabilities give Rodgers some team selection dilemmas going into the hotly-anticipated Battle of Britain.