Swindon were due to be playing Brentford in a friendly on Tuesday 25th July but it's had to be cancelled to allow the new pitch more time to recover after the Crystal Palace friendly which is due to be played on Sunday 23rd July.
Swindon will be playing Brentford a month later anyway as the two sides have been drawn against each other in the first round of the Carling League Cup which is due to be played on 22nd August.