Juan Mata believes 'anything is possible' when Manchester United bid to overturn a 1-0 deficit in their Champions League quarter-final against Barcelona.
The Spanish giants scored a vital away goal at Old Trafford in the first leg and Ole Gunnar Solskjaer's men will travel to the Nou Camp on Tuesday night looking to spring another surprise in the competition
Having stunned Paris Saint-Germain to reach the quarter-finals, United will go to Spain with the belief that they can stage another comeback and Mata insists they are fully motivated.
"We are now in what could be the final four weeks of the season and every game is key. You have to mix your desire with responsibility, but you always have to be fully motivated," Mata wrote in his weekly blog.
"Tomorrow, we have the second leg of the quarter-finals of the Champions League and we are travelling to Barcelona with that motivation.
"Being 0-1 behind isn’t a good scoreline, but we are Manchester United and, when you wear this shirt, anything is possible.
"It is something that I have already repeated on many occasions, but it is real, and we have experienced it several times this season."
It is 20 years since United won the treble as they came from behind to beat Bayern Munich in the Champions League final and Mata believes they can draw inspiration from that game.
"Twenty years ago, the club achieved an incredible triumph that was fuelled by keeping the faith and not giving up until the very last second," he added.
"A historic Champions League final win that will be remembered forever. Those goals from Teddy Sheringham and the boss in stoppage time are not only in our club’s history, but also a memory shared across football in Europe and the history books of the Champions League.
What a night.
"I hope that, on Tuesday, we can experience another magical evening. We have to believe."
Manchester United play Barcelona in the Champions League quarter-final second leg on Tuesday, 16 April live on BT Sport 2 on the eir sport pack [kick-off 8pm]. Subscribe here