Portsmouth denied talk of a player revolt at Fratton Park.
Reports suggested players were up-in-arms over Diarra's £50,000-a-week wages after he signed a three-and-a-half-year deal last week.
But the Blues today laughed off the suggestion there was unrest among the players.
Pompey spokesman Gary Double told The News: 'It's absolute rubbish. Complete nonsense.
'Lassana played excellently on his debut and he will be a popular member of the squad.
'Let's just concentrate on the football rather than this rubbish.'