He said that there is a forecast of rain in Taunton on Wednesday and there are 80 per cent chances of rain which may abandon the match.
"We will go with the aggressive approach we showed against England".
"Mitch is coming in as a replacement if Marcus doesn't recover quickly enough or respond to treatment over the next few days".More news: Google Assistant has finally arrived in Waze
"(We're) not exactly sure on how many games he'll miss", added Finch.
Marsh was not included in Australia's original 15-man squad for the World Cup but is a member of the Australia A side which will begin a tour of England in the run-up to the Ashes Test series that starts after the one-day worldwide showpiece event.
"He was in some discomfort, it wasn't ideal, but he still managed to bowl a couple of overs". With the bat, he was out for a duck when Australia would have loved to see him score some runs as the match was evenly poised.
Pakistan is playing an ODI for the first time at Taunton and it will also be the first time Sarfaraz will lead the side against the Australians in an ODI.More news: PM candidate Harper asks Johnson - Why won't you answer questions?
Pakistan - who won the ICC Champions Trophy in England two years ago - tamely lost their opening fixture to the West Indies but bounced back to beat the world No.1 and tournament hosts England at Trent Bridge last week.
The report quoting Geo News said that Sarfaraz is unhappy that Pakistan generally get pitches in ICC events that didn't favour their game. "It's a totally different bowling attack here but it still gives you a lot of self-belief going into a game".
"They've got some world-class players, there is no player you can disregard, they've got match-winners and experience, you need to play your best to beat them".More news: Radiohead share hacked files from OK Computer sessions
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