April 17, 2006 and a home clash against United at the Lane will go down as a key moment in his career he feels its the day he proved he was good enough for Spurs and the Premiership.
That Easter Monday clash was Calums full debut for us at the Lane against the attacking force of Wayne Rooney and Ruud van Nistelrooy ammunition supplied by Ryan Giggs and Cristiano Ronaldo but he coped admirably, despite a 2-1 defeat.
"In terms of being at Tottenham it helped me no end because I played against two of the best strikers in the world that day," reflected the 23-year-old.
"My full debut could have been against any team and perhaps I would have been expected to play well, but this was United and to come up against the best, do well and be pleased with my performance was great for me.
"We lost so that meant the overall feeling was one of disappointment but it was my opportunity to make big impact, to show people what Im all about and hopefully I did that."
Calums form continued in pre-season and he has started all three Premiership fixtures so far - but knows his place is under pressure from the returning Ledley King as we prepare to travel to Old Trafford.
"At the start of the season it was unfortunate Ledley was injured, especially after missing out on the World Cup, but it was an opportunity for me," he added. "Points-wise it hasnt been the best of starts but personally, Im more than happy to have played the first three games of the season.
"Ive been involved at most grounds in the Premiership but not Old Trafford. Ive been many times because I used to go with my dad to watch them, but this would be something different.
"Everyone was disappointed after what happened against Everton but what a stage to go and put that right."
Manchester United will always mean something special to central defender Calum Davenport.