Manchester United manager Jose Mourinho has praised the efforts of Marcus Rashford, whose second-half goal has given United the advantage heading into next week's Europa League semi-final second leg.
"We have got to keep the pressure on the top four, we're not out of it yet", he said. "They didn't play football".
Michael Owen says that Manchester United "will score a lot more" goals with Marcus Rashford leading their line, rather than Zlatan Ibrahimovic.
"We played well enough to have the result closed but we have to go and play at Old Trafford".
'It's a short result, it could have been better [against Celta],' he said.
"Let's hope next week that Old Trafford wants us to win because when Old Trafford wants, we win".
Unlike Sevilla this season, who benefited from last season's winners Real Madrid also qualifying for the group stage as runners-up in La Liga, United will be forced to negotiate a play-off as Europa League holders.
It was a relatively tiresome game in a full Balaidos Stadium on Thursday night, but the English side probably deserved the win after creating more chances against a rival they were able to stifle for long parts of the game, reports Xinhua news agency.
Three-times European champions United had never reached the last four of the Europa League or its predecessor the UEFA Cup, while Celta were in their first major continental semifinal. They don't know it, but when we're on the field and hear them shouting our names, it pushes us to the limit. "I think having that pace can be important".
He added on MUTV: "Of course, we are always confident".
The away goal could prove crucial but the narrow winning margin means Mourinho will, as suggested on the eve of the first leg, rest several players when United return to Premier League action on Sunday. "The Man United fans expect more than sitting back and taking a 0-0 draw so I think we are going to have even more space, although we should have probably kept it 0-0". I think we're happy with the 1-0.