Antony made quite the impression during his six-month loan with the Spanish club, scoring nine goals and providing five assists during in his 26 games.
The feeling appears to be mutual, with Antony pushing for a return throughout the summer, reportedly turning down several offers from other European clubs.
An agreement between Betis and Man United was finally reached just before the deadline, but everyone was left sweating on approval from the Glaser family.
Alcaron told ABC Sevilla: “There was a moment when we saw it was lost because United’s position was difficult. We had a difference of €5-6m and had already reached our limit. In the end, we all made an effort, we did our part, and so did the player and United.
“On Sunday, during the match against Athletic, the relationship was very tense. Around noon, United sent the draft contract and asked us to make the changes. It was clear that they were going to comply with our requests.
“In the early hours of Sunday morning, at 2am, we received confirmation. In the morning, we closed the accounting for Antony’s future capital gains because we wanted to have the ability to recover the investment. It was one of the most problematic points, but we resolved it.
“Sunday at 2am is when the situation was unblocked, and we started looking for a plane so he could come on Monday afternoon. There was still a bit of stress because everything was agreed upon, but we had to wait for the Manchester United owners in the United States to sign, and they did so at 3pm on Monday.”