Spurs thrashed United 6-1 at Old Trafford in October but the Red Devils have since enjoyed the more impressive season, rising to second in the table, 11 points clear of Mourinho’s side.
“I believe that 6-1 doesn’t reflect the reality,” Mourinho told his pre-match Zoom press conference.
“It can happen. Of course it can happen, between two great clubs, results can happen in an isolated way. I go much more in the direction of the other two previous matches between us and United.
“We lost 2-1 at Old Trafford, with the penalty, and we draw 1-1 at home last season, also with a penalty. I think this is more the reality. We are not far from each other so I think it is going to be a difficult match for both.
“If [United manager Ole Gunnar] Solksjaer is going to use that result [to motivate his players], I don’t know.
“If it was the opposite, if it was my team losing 6-1 to them, I would just say to my guys that it happened once and it’s not going to happen twice. This doesn’t reflect the reality. The game is going to be tight and we can win, but I don’t know, maybe Solksjaer has different things.”
Despite making reference to United’s two penalties against Spurs last season, Mourinho insisted he would not go into the match concerned about United’s habit for winning spot-kicks.