And the Brazilian now believes his boss should go all-out to land Barcelona striker Samuel Eto'o and Manchester United forward Carlos Tevez to help make the Blues unbeatable next season.
Hughes has already splashed the cash during the close-season, bringing in Aston Villa midfielder Gareth Barry and Santa Cruz for £12 million and £18 million respectively.
And with Tevez - who announced he will be leaving the Premier League champions last weekend - being tipped to follow, former Real Madrid man Robinho is confident the Eastlands outfit are well on the way to becoming the biggest team in Manchester.
“It is very good to know my club is going for top-quality players like these," he said in The Sun.
"Now I hope we can get Eto'o as well. I've heard a deal for Carlos [Tevez] will be sorted very soon.
“A player like Santa Cruz is more than welcome. I hope the club keep signing players with that quality. If so, we will be almost unbeatable.
"We want to make City the biggest club in Manchester and win titles, as many as possible.”
NEWS: Santa Cruz completes Eastlands switch
NEWS: Manchester City bag Barry
CITY FANS! Check FourFourTwo.com’s ever-expandinginterviews archivefor more stuff to read:
One on One Sven Goran Eriksson
Web Exclusives Joe Corrigan
Q&A Robinho
Boy's A Bit Special Michael Johnson
Ask A Silly Question Peter Reid, Alan Ball
What Happened Next? Jim Whitley, Tony Cunningham
Sing When You’re Winning David Threlfall
Plus Joe Corrigan on Weekend Wonders and City on Talentspotter
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