The Red Devils were incensed when it emerged that Manchester United fans travelling to their Round of 16 tie at the Ramon Sanchez Pizjuan Stadium would be charged £89 for a seat.
United raised their concerns with the Spanish club over pricing for the game but have now chose to charge the exact same amount for the second leg at Old Trafford after the Spanish club refused to back down over the dispute.
Sevilla were heavily criticised in December when it was revealed that United supporters travelling to the Ramon Sanchez Pizjuan on 21 February would be forced to pay between £89 (€100) and £133 (€150) for a ticket in the away end.
UNITED and Sevilla have broken out in commercial war after hiking the ticket prices for visiting fans.
Whereas Liverpool met Sevilla in the group stage of this season's Champions League and their travelling support were charged £54 each for a match ticket, the visiting Man United supporters are being asked to fork out £89 each.
It means Sevilla fans will be hit the hardest, something the Premier League side said was necessary to avoid future clubs trying to rip off their travelling supporters.More news: Here's Why Prince William May Not Be Prince Harry's Best Man
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There were failed talks between the two clubs in an effort to lower Sevilla's price for away fans but after no headway was made, United have responded by upping their own prices.
United outlined their stance in a letter to ticket holders, which was issued on Wednesday morning.
Ultimately Sevilla have not agreed to significantly lower the price to what we view as a reasonable level.
This represented the highest ticket price for a game outside of a final or semi-final in the club's history.
'Further to our recent confirmation that you were successful for the Sevilla away game, we wanted to inform you of a change in what you will be charged for this game.
It's not done there however with Sevilla saying they will also pay the difference to their fans as well as report the English giants to UEFA for not offering the mandatory 5% of tickets for away fans required for UEFA games, as United are only offering 4.1% of Old Trafford's capacity.
United are being very sound on one hand but did they really need to hike the Sevilla fans' tickets to fund it?