Watford manager Walter Mazzarri says that he will shake hands with Italian compatriot Antonio Conte but he would not describe the Chelsea manager as his friend.
The pair were fierce rivals while managing Napoli and Juventus in Italy and Mazzarri was said to be furious when he perceived that Conte imitated his 3-5-2 formation during a title race.
The two Italians come face to face in the Premier League on Saturday as Watford host Chelsea at Vicarage Road.
'Friendship is a very important concept, Mazzarri said.