Tottenham manager Andre Villas-Boas has dismissed empirical analysis in football as "useless".
It has always been thought that due to his love of detailed dossiers on opposing teams, Villas-Boas was an advocate of Prozone - the technical analysis of almost every part of a player's game - but it turns out that is not the case.
"I have never used Prozone. I don't use it because I don't believe (in it)," the Tottenham manager said.
"You always have to be very, very careful with statistics. It doesn't mean that we negate them completely; we just don't use them to the extent that people might think.
"We have a scientific department that deals with that but, we don't prepare our training or players based on the physical data we get from matches. The mind and how the player feels is much more important for us, rather than statistical data.
"For me it's useless, but it varies from coach to coach. We all have different approaches."