Nani had been linked with a move away from Old Trafford by British media and admitted that watching games from the bench was "boring" but the Portuguese said he was looking forward to meeting his new team-mate.
"Of course I have to welcome everyone they sign, I think Man United is a fantastic club. When they bring in new players, they know if it is good for the team or not, and this [Young signing] has to help them," Nani said in the suite of his hotel in Singapore.
"It is good for the team, we want more [players] to help us to win trophies."
The 24-year-old explained that his experiences competing with the world's most expensive player, Cristiano Ronaldo, for a place in the Portugal line-up and previously in the United first team meant he was not concerned by the prospect of reduced appearances following Young's arrival.
"I've been there [at United] when Cristiano was there, Cristiano was one of the best players in the world. At that moment [I had no] worries about him [taking my place]," Nani said of his prolific countryman, who joined Real Madrid in 2009.
The Portuguese began last season in scintillating form before tailing off and losing his place in the side to Antonio Valencia for the 3-1 defeat by Barcelona in the Champions League final last month.
Former South Korean international Park Ji-sung also started the Wembley final on the flank ahead of Nani.
"It was boring because you want to play, everyone wants to play," Nani said. "The finals are for playing but the manager makes the decision and he knows who is better for the team and I have to respect that."
He did, however, come on for the last 20 minutes to replace Brazilian defender Fabio and witnessed first-hand the level that United need to reach if they are to lift the European title for a fourth time.
"[Barcelona] are the best team," he said. "They are not unbeatable, maybe a different game we can beat them, you never know. A game is a game and you never know what is going to happen."
BALD TRUTH
Nani, relaxing in flip flops and shorts after enjoying a few days rest in Singapore, acknowledged that tiredness may have been a factor in manager Sir Alex Ferguson's decision to drop him for the final.
"Last season I played more games [in a season] than ever [before] at Man United, that's why maybe in the last games I didn't look the same as in the first games.
"Now I'm on holiday for some rest, get my power back, at the start of the season I will be fine to start strong again, start to do what I know."
Nani was also in the southeast Asian city state to help promote the Peter Lim Scholarship scheme for the Singapore Olympic Foundation.
Lim, who failed in his bid to buy United's arch-rivals Liverpool last year and who owns a number of United supporter bars in Singapore, invited Nani to talk to school children about his difficult upbringing, where money was tight and luxuries unheard of, and the hard work needed to reach the top
