Posta Rangers head coach Sammy Omollo believes his team fell against Chemelil Sugar because his players underrated them.
The Mailmen had come into last Saturday's match as favourites but ended up losing 2-1 at Muhoroni Stadium.
The furious tactician states it could have been different if only his players could have taken the match with all the seriousness it deserved.
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"Underrating your opponent is the worst thing you can do in football," Omollo told Goal on Friday.
"My players had anticipated an easy game because Chemelil have not been doing well in the league.