After Mosimane led the Red Devils to third place at the FIFA Club World Cup, Pacheco congratulated their rivals stating their achievements were 'good for African football'.
The Portuguese tactician also suggested he's aiming for another Cairo Derby final in 2020/21 campaign of Africa's elite club competition as he looked to avenge last season's defeat.
"I will not respond to Pacheco's comments, my focus is only on Al-Merreikh," he said in the pre-match press conference for the Champions League opener.
"Who knows who will reach the final? To talk about it now... [he] has can say what he wants, but I will not comment on it. Pacheco always talks about us, but I will not respond."
The Club of the Century kick off their continental campaign this evening at the Cairo International Stadium (21h00).