Villas-Boas endured a slow start to his reign at White Hart Lane, with Spurs booed off twice during an opening trio of winless games. The Portuguese has masterminded a turnaround since, however, with a run of three consecutive league wins that culminated in Saturday's 3-2 victory over United - their first at Old Trafford since 1989.
Villas-Boas has challenged his team to maintain their domestic momentum by winning their next two games against Aston Villa and the 34-year-old's previous employers Chelsea. "It doesn't stop here," Villas-Boas told Spurs TV Online.
"The emotions we were living (after the United win) are very inspiring and results are also good to build confidence. That confidence is good for us as we approach our next couple of games.
"We have two games at home now, and we have to improve our home form to make sure that this becomes a sequence for us."
Gareth Bale was just five months old the last time Spurs beat United on the road thanks to Gary Lineker's strike 23 years ago.
Spurs have conceded three against the Red Devils three times since he joined the club and came off the bench during United's 5-2 hammering of the Londoners in 2009.
"Ever since I have been at Tottenham we seem to go to Old Trafford and either get a lead then lose it or just get absolutely battered," said Bale, who scored Tottenham's second on Saturday.
"Over the last 23 years we haven't won here but now that's over so the lads are absolutely ecstatic.
"We were delighted to get the three points and put ourselves right back up near the top of the league."
Source: PA
Source: PA