Inter Milan coach Jose Mourinho has accused CSKA Moscow of being sly ahead of Tuesday night's UEFA Champions League quarter-final second leg between the two sides.
The Italian giants take a slender one-goal advantage to the Luzhniki Stadium as they look to make the last four of Europe's premier club competition.
Mourinho, never a coach to shy away from controversy, has questioned the reasoning behind CSKA not playing this weekend.
While Inter played on Saturday in beating Bologna 3-0, CSKA had a free weekend as their match against Zenit St Petersburg was postponed for security reasons following the double Moscow suicide bombings last week.
Mourinho, though, remains non-plussed with the explanation offered by CSKA: "CSKA have already done something to win tomorrow (Tuesday). They didn't play Saturday.
"They used a slightly sad excuse but they did it well. Of course they could just have told the truth.
"A few months ago I congratulated (Milan chief executive Adriano) Galliani, who did something we call an intelligent game.
"CSKA have done the same thing, they've done very well but they could just tell the truth.
"Would I coach in Russia? Only for CSKA because they have the ability to reschedule matches as they want."
Mourinho also offered some barbed comments when quizzed about CSKA's synthetic pitch.
"With the synthetic pitch we have all the disadvantages. If the Champions League began with 31 teams who play on natural grass and one who plays on a synthetic pitch, have the 31 teams made a mistake or instead is it CSKA?
"The match would have been much more attractive on a natural grass pitch."