His team went to Stockholm to do a job and they managed to do just that.
"Especially because you have two legends - many of them, but two [Busby and Ferguson] are legends in terms of titles and trophies".
"We wouldn't think twice".
But despite being restricted to a watching brief manager Mourinho revealed the 35-year-old had a big impact, particularly on the Friends Arena ball boys. It means everything for the team.
"It means everything. It means the third trophy, it means going back to the Champions League, it means winning a European trophy, it means playing European Super League in Macedonia next August". Mourinho has also won the club two major trophies in his first season after lifting the EFL Cup in February.
"We want peace in the world - a normal world with respect".
"We totally deserved the win. We got up there and we are very proud now".
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Juventus were the first team to record the unusual treble. We always thought that we could win the Europa League and we are very happy.
Mourinho, though, acknowledges he is working in the shadow of iconic figures such as Sir Alex Ferguson and Sir Matt Busby and has a long way to go before he can be considered a success in his own right.
Paul Pogba, the world's most expensive footballer and a man who, less than a fortnight ago, lost his father to a long-term illness, gave United the lead with a 25-yard deflected strike.
"We know we could have done better in the Premier League so to finish the season by winning the League Cup and the Europa League is fantastic".
"And 64 matches out of 66 possible, which is incredible".
He said he agreed with UEFA's decision to play the match and he said the "tragedy" on Monday took some "happiness" from their achievement. "There are many more things more important than football in life but we tried to win to lift the spirits of the town, at least for some hours".
Speaking after the win, Mourinho acknowledged that it wasn't the most lovely or dominant performance from his men.
The manager indicated Wayne Rooney, a late substitute, could stay.