Manchester United boss Jose Mourinho was angered yesterday in China over a question regarding Manchester City rival Pep Guardiola.
Both managers have faced questions over their sometimes fractious battle in Spain.
Ahead of their pre-season friendly today, Mourinho said: “To qualify the question I would use some unpolite words.
“Of course, I shake his hand. Why shouldn't we?
"I don't understand the question to him and I don't understand the question to myself.
"We work together in Barcelona for three years, we were opponents in other clubs but we are just professionals and we have a normal relations.
"Why shouldn't we shake hands? I don't see the reason for the question."