The striker scored a sublime lob against Gremio to help his side into the Brazilian Cup final and ensure that the game wasn't his last for Santos.
The 26-year-old will now join up with Brazil's World Cup squad but will return for the final against Vitoria after the tournament in South Africa.
HIGHLIGHTS: Santos 3 Gremio 1.The decisive second leg is on August 4, the last day of the currentloan agreement with City, and despite Roberto Mancini expecting himback at Eastlands, Robinho has not given up hope of an extensionthrough to at least June 2011.
Happy at home: Robinho
'I will return to Brazil after the World Cup and, God willing, I'll stay to play in the Copa Libertadores (in 2011),' he said after the 3-1 win against Gremio.
'This is my will. It's a title that I haven't won. I want so much to play in one more Libertadores, if we qualify.
'If I have to make a request for them (City) to release me, I ask, no problem.'
The victory reversed a 4-3 first-leg defeat and Robinho's lob from nearly 25 yards was only bettered by a 30-yard belter by Paulo Henrique Ganso.
Ganso has been linked to Real Madrid, but City have first option on the 20-year-old for the duration of Robinho's loan.
Santos would qualify for South America's premier tournament by winning the Brazilian Cup and have not been crowned kings of the continent since Pele was at the club in 1962 and '63.
Robinho was part of the side who finished runners-up to Boca Juniors in 2003, alongside Juventus star Diego and Chelsea defender Alex.
Man City dilemma as Real Madrid enter race for Santos's brilliant GansoChelsea have £17m Toure bid rejected as City and Arsenal eye Barca battlerManchester City eye Ibrahimovic as Barca prepare to offload strikerReal Madrid panic over £17m Silva as Man City and Arsenal wait to pounceMANCHESTER CITY FC