Tying down the future of their impressive young coach is a smart move by the South Australian club, who can look forward to the finals and the coming years with optimism
The Spaniard's appointment was greeted with a mixture of scepticism and optimism, but after a slow start the former Kitchee boss has silenced the doubters emphatically, guiding the Reds into the finals and orchestrating some of the most entertaining performances of any team this season.
A former Barcelona academy coach, Gombau has won plenty of admirers among neutrals and is a firm favourite with the Adelaide fans, thanks in no small part to his animated touchline antics.
Having initially signed a two-year contract in 2013, the 37-year-old has now committed to Coopers Stadium until the end of 2016-17.
"To make this project work, we need time, and with this time we will be able to produce and achieve this style of football," he said.
"I want to say thank you to the club and to the fans for having confidence in me.
"This extension is also part of my players and I want to share this extension with them.
"I would also like to say thank you for the support to myself and my family, as we are very happy in Adelaide and are grateful to stay for another three years."
Gombau's popularity with fans was reflected in his appointment after a supporter vote as coach of the A-League All Stars team to face Juventus in August.
While the Catalan claims his Adelaide side will start to play their best football next season, a victory in Saturday's elimination final against reigning champions Central Coast Mariners could see the timescale for success dramatically revised.