The pair have already clashed earlier in the summer as the Toffees manager hit out at his opposite number following their public pursuit of highly-rated defender John Stones during the transfer window [via Telegraph Sport].
Mourinho hit back by suggesting the Spanish manager was making too much of an issue of the situation regarding the 21-year-old by speaking to the media more often than not [via Mirror Sport].
Now their feud has moved to a new level as Mourinho was reportedly not too pleased with the fact that he felt Martinez broke managerial etiquette following the clash at Goodison Park.
The report says that it’s a Premier League tradition that the visiting manager is allowed to attend the post-match press conference first so they can stick to their travel plans.
However, Martinez is said to have upset the Portuguese coach as he spoke to the media first and kept the whole Blues squad waiting.
That led to ex-Real Madrid, Porto and Inter Milan boss approaching Martinez at pitch-side and said the following:
“Roberto, next time tell me go before you because we have to travel.”
Martinez responded and fired back with the following comments:
“We don’t control that Jose, I don’t control that.”
“When he beat us 6-3 (last season) he was such a nice man, I prefer him like that!,” he told reporters after Mourinho had left to conduct his press conference.
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The Spaniard ultimately had the last laugh as he guided the Toffees to a 3-1 win over the west London outfit as a hat-trick from Steven Naismith inflicted a third defeat of the new campaign for Mourinho’s side, who are now 11 points adrift of league leaders Manchester City after just five games.