On the same day, Essex announced that they had signed Panesar on loan from Sussex.
"Essex have secured the signing of Monty Panesar for the rest of the 2013 season. Panesar will join the Club on loan from Sussex and is available for the six LV= County Championship matches, starting with the Colchester Cricket Festival, which begins on Tuesday 20th August at Castle Park versus Northamptonshire," the team said on its website.
Essex's coach Paul Grayson said: "We are delighted to welcome Monty to the Club for the remainder of the season. He is a world-class spinner and we are confident that he will have a positive impact on the team. He will join us from today and will hopefully be playing tomorrow at 11am against Northants."
Panesar will come in to the squad to replace Tom Craddock who looks set to miss the remainder of the season for personal reasons.