Barcelona director Carles Rexach says Southampton boss Ronald Koeman had a big influence on Pep Guardiola.
Rexach believes Bayern Munich coach Guardiola learned his trade from Koeman.
He told Regiò7: "Pep reads the game very well, he learned from Koeman who was the first player to be like a coach on the pitch.
"He was able to understand whatever tactical change was necessary during the game. When you are on the sidelines it is very difficult to correct the players positions on the pitch."