Manchester United season ticket holders have been told they must buy tickets for the Champions League last-16 second leg clash against Olympiacos at Old Trafford, or risk a suspension from the forthcoming derby match against Manchester City on March 25.

According to the Daily Mail, an email had already been sent to the club's most loyal supporters prior to last night's disappointing 2-0 first leg defeat in Greece, reminding fans they must purchase tickets by 8pm on Wednesday night to avoid a one-match ban.

Failure to place an order will result in leftover tickets being made available to other fans in the members' ballot, with the season ticket holders then able to apply for a refund for the missed game at the end of the season.

Given the frustration of Manchester United's supporters at present, after what has been a hugely disappointing 2013/14 campaign so far under David Moyes, the tone of the email is unlikely to go down well with sections of an increasingly disgruntled fan base.

The Automatic Cup Scheme brought in by the Red Devils' American owners means that fans are contractually obligated to buy additional tickets for Champions League and FA Cup fixtures in addition to their 19 Premier League games at Old Trafford, or else they could lose their seat for one home league game.

Ihas already caused widespread anger amongst Manchester United supporters, and the tone of the latest email from membership services at this already difficult time will not help the situation.

"The deadline to buy your ticket for Olympiacos FC is Wednesday 26th February 2014 at 8pm," it read. "Please note that not buying this ticket will result in your Season Ticket being suspended for the Manchester City game.

"We look forward to hearing from your shortly."

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