"We spoke about it before the kick-off: for Emiliano we ought to try to put a performance in," Warnock said.

"I can't explain how it's been this week. You've not really wanted to get out of bed, because you know what's coming.

"Everything was really miserable. Nobody could actually do anything about it.

"In the circumstances, we've only worked on it for 24 hours, the system and everything.

"They couldn't have given me any more tonight. I'm proud to be their manager tonight."

Two days after Sala's transfer to Cardiff in a £15million deal from Nantes, the Piper PA-46 Malibu plane carrying the Argentinian and Ibbotson disappeared over The English Channel.

An official search was called off last Thursday, with funds raised to conduct a private exploration.

Tributes at the Emirates Stadium included a daffodil by Sala's name in the Cardiff squad list on the matchday programme, the Bluebirds' mascot Daffyd wearing a shirt sporting the striker's name and numerous supporters' banners.

The biggest read: "We never saw you play and never saw you score, but Emiliano our beautiful Bluebird we will love you forever more."

Warnock added: "The fans showing what they've shown down at the stadium was pretty amazing and the Nantes fans have been fabulous.

"I know we've lost a game of football, but there are other more important things."

Arsenal boss Unai Emery said: "Last week I was thinking maybe we cannot play, but the situation is continuing.

"Continuing finding Emiliano Sala, continuing the competition and it is a very emotional match today."

Emery said Arsenal's patience was rewarded, but Warnock rued missed opportunities and Bruno Ecuele Manga's foul on Sead Kolasinac, which brought the penalty.

The Bluebirds boss said: "I don't think we were expecting any points as such, but I'm disappointed we didn't get three, let alone one.

"I couldn't see how they were going to score, other than a stupid tackle in the penalty box. Having warned at half-time not to do things like that, be careful, because they'll go down, to give a goal away like that was diabolical from my point of view."

Warnock added his plan was to try to add defensive reinforcements prior to Thursday's closure of the transfer window.

He added: "I don't think we'll be doing anything striker-wise – we took two months on Emiliano.

"I can't see anybody at the moment that we can get, with all the rules and regulations, that's better than what we've got.

"We're still trying to bring in one or two defensive players."

Emery refused to be drawn on a potential loan deal for Barcelona's Denis Suarez, insisting his sole focus had been on the match.

"If we can sign one player to come and help us that is good for us," he said.

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