Cristiano Ronaldo says he has not returned to Manchester United "for a vacation" as the Portugal captain prepares for his Old Trafford homecoming on Saturday.
During his first spell with the Red Devils, the 36-year-old scored 118 goals in 292 games over six successful years in the North West.
"I am capable," Ronaldo told the club's official website. "I am ready to go."
United host Newcastle in the Premier League in a 15:00 BST kick-off.
The re-signing of Ronaldo for £12.8m from Juventus was one of the biggest transfer stories of the summer as United's rivals Manchester City had looked to be one of the favourites to land the forward.
The Portuguese star, who will wear the number seven shirt once again, won three Premier League titles, one Champions League, two League Cups and one FA Cup - as well as the Fifa Club World Cup and Community Shield - under former manager Sir Alex Ferguson.
Although United have won trophies since Ronaldo left for Spanish giants Real Madrid in 2009, they haven't secured a top-flight title since the 2012-13 season.
"This is why I am here," he said. "I am not here for a vacation.
"Before was good, winning important things and I wore the shirt before, many years ago, but I am here to win again.
"It is a good chance for me, for the supporters, for the club, to get one step ahead. I am ready and I think I will be a huge thing in the next three or four years."
Latest Stories
-
Suleja prison: 108 inmates on the run in Nigeria
1 min -
We object to government’s plans to make BEST sole off-taker of Sentuo Oil Refinery – CBOD
9 mins -
Burkina Faso army massacred 223 villagers in revenge attack – HRW
18 mins -
Germany detains alleged Nigerian mafia members
23 mins -
Manhyia Palace hosts royals, dignitaries from Ghana and beyond at special Awukudee
30 mins -
Celestine Donkor speaks on report of undergoing weight loss surgery
52 mins -
Bright Simons: The SML defence “falls flat”
60 mins -
We need long term macroeconomic stability to build a strong and vibrant economy – Deloitte Boss
60 mins -
Adomaa Adjeman to make theatre debut as Aku Sika in Prof Martin Owusu’s epic
1 hour -
U.S. government supports Ghanaian partners to protect Intellectual Property
1 hour -
Eric Johnson
1 hour -
Tanzania denies abuse reports as World Bank halts funds
1 hour -
2024 polls: The person I defeated twice can’t succeed me – Akufo-Addo
1 hour -
NBA: Miami Heat beat Boston Celtics to even series
2 hours -
Two sentenced for stealing over 1,000 bags of rice
2 hours