The Red Devils boss has spoken of his confidence in the strength of his squad, believing that his current team have the talent to emulate the historic success of 1999
The Red Devils, who sit four points clear of rivals Manchester City having played a game less, are unbeaten in 10 Premier League matches and will extend their lead at the top if they beat Tottenham on Sunday.
Sir Alex's side, unlike their adversaries, also remain in the Champions League as they await the much-heralded arrival of Real Madrid in February.
With a fourth-round FA Cup fixture against Fulham also imminent, the Scot expressed his confidence in his squad's ability to flourish in the latter half of the season.
"We want to be involved in everything. We've got all three trophies to go for - and we've got the squad to do it. It's absolutely brilliant for everyone connected with Manchester United," he told reporters.
“We have got the excitement of going to Real Madrid in the Champions League and them coming here. We’ve got Fulham in the FA Cup as well after winning our replay against West Ham. And if you go back to the year we won the treble, we had a cup replay against Chelsea and another one against Arsenal."
The veteran manager also spoke of his pleasure at the return of such defensive stalwarts as Nemanja Vidic and Rio Ferdinand, emphasising the difference that the returning players can make to the side.
"The squad is looking very strong at the moment with players coming back in. Rio Ferdinand and Nemanja Vidic were absolutely brilliant against Liverpool last week and against West Ham we had Phil Jones and Chris Smalling," he continued.
“If they all stay fit then we’re in a strong position. It’s good news because we are over a lot of injuries now and if they get a bit of football and training behind them, it will make a big difference.”