Arsenal supporters were surprised by the decision taken by Emery to allow Wilshere to leave the Emirates Stadium, and Pellegrini feels it is one the club will regret.
West Ham captain Mark Noble has been unable to train this week because of a back injury and is expected to miss this match.
"I spoke with him for 15 minutes here in Colney before he left", he added.
'If we can learn anything from Unai Emery's first two games in charge, it's that he won't hesitate hooking players, no matter their reputation, ' he told the Evening Standard. "It will be demanding and I want to have more control to find the win in this match".
Jack Wilshere will be returning to the Emirates to play his club of 17 years for the first time on Saturday, and looking to prove Sam Allardyce wrong in particular, after he suggested West Ham's midfield didn't have the legs for the Premier League.
The Spaniard is expected to be given plenty of time to implement his ideas at Arsenal but the pressure will start to mount if he doesn't collect all three points against the Hammers tomorrow afternoon. "For me, one thing is important for him - to be a protagonist in a new project".
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The Turkish lira stood at 5.80 per dollar on Friday, up about 0.4 percent against the dollar. But he suggested Turkish "policymakers only really seem to have done the minimum needed".
"Against Bournemouth, we did a good job in the first half but I think it's still not enough because we need to be more clinical". This season we are working with him from July 1, 40 to 50 days, and he's not having any problems. He was respectful and honest, and we had a good honest conversation about football and where he sees my playing.
The Unai Emery era has started with a splutter for Arsenal - not that it wasn't predicted. But also, this position also for the players, they know that in one moment we can do that.
"It is not about how much I criticised the fans - it is how much the team needs the fans", Pellegrini said.
"Then we are going to play and we are going to think after that, for us to win".
Holland is known for his speed and trickery and has been hailed as one of the brightest prospects in the English game by those behind the scenes at West Ham.
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