Alli, 20, said: "He (Pochettino) knows that's who I am". "Everyone makes mistakes but it's just important that you bounce back".
Chances continued to come Tottenham's way, with Alli scuffing straight at Forster, who was then required to make an instinctive, clawing stop to keep out Toby Alderweireld's header. "We have had a few talks and he's been really supportive".
"I'm pleased for him and very pleased for the whole team because we played in a good way".
But no matter: Dele Alli and Christian Eriksen did the damage in the first half to secure the win.
"So it is a must-win game for them, but I think they will do a job without him for one, two or three games". If things don't go my way, I learn from them and keep improving. There's up and downs in football. "Sometimes things happen and you have to learn from them".
Alli was sent off for a risky lunge on Gent's Brecht Dejaegere in the first knockout stage of the Europa League in February and has faced calls to tame his character and tread the line more carefully.
"We're a young team and it's important that we all help each other out when we can", he said.
"We need to assess him day-by-day. Always when you sign players from the outside it's always a big question mark", admitted Pochettino.
In truth, Alli can be forgiven a multitude of sins all the time he is rattling in the goals.
Spurs lead that pack and they will be hoping during the duration that Kane is absent for, they do not drop important points.
Alli, 20, continued his red-hot scoring form from the penalty spot yesterday as Spurs shrugged off the absence of top scorer Harry Kane to beat Southampton 2-1.
"I always want more, I'm always hungry", Alli said.
Fielding a weakened team and playing their third game in six days, United looked like easing to victory after goals by Marouane Fellaini and Jesse Lingard - a spectacular strike from the edge of the area - put the visitors 2-0 up by the 62nd minute. "It is disappointing, a draw seemed normal for me". "But I'm happy to play anywhere in this team".
Alli did not enjoy his best game on Sunday but proved again that he has the handy knack of popping up in unsafe areas in the style of former Chelsea midfielder Frank Lampard.