Adelaide United captain Isaías is officially an Australian citizen following a ceremony at Coopers Stadium on Tuesday.
Ahead of Wednesday night's clash against Melbourne Victory, the Spaniard was presented his Aussie citizenship alongside his daughter Vega and eight other conferees from a number of different nationalities.
It was a special moment and fitting venue for Isaías, who joined the Reds in 2013 and has been an integral pillar in the club’s success during that time.
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The 31-year-old has cinched four trophies since his arrival and collected several personal accolades along the way – including three Aurelio Vidmar awards as the club's best player.
He claimed his second FFA Cup title in October last year, as well as a historic Hyundai A-League Championship and Premiership double in 2016.
“I feel really happy at the moment,” Isaias told reporters on the pitch of Coopers Stadium.
“Not only for me but also for my family.
“I think it’s a special day for us and I hope to celebrate tomorrow with three points.”
The former Espanyol midfielder has played a total of 163 games for the Reds and was given the skipper's armband at the beginning of the 2017/18 Season.
Isaías admitted he never thought about becoming an Aussie when initially embarking on his move to Adelaide.
“The first time when I arrived here it was more like an adventure for me,” he said.
“Like another experience in my career and now my thoughts are completely different.
“And I’m hoping and I would like to grow my family here, so in this time (living) here it changed my mind because it’s a safe and healthy country.”