Having only signed Petr Cech so far this summer the Frenchman has come under fire after a stuttering start.
“I am available 24 hours per day so I am involved in the decision,” Wenger said.
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“I cannot say I am very confident [about bringing someone in] because we are not close to signing anybody at the moment but the transfer market is always moving in the last four or five days.
“We work very hard and I have a team around me that works day and night to find good solutions but at the moment we are not close to signing anybody.
“You have specific targets but as well sometimes you get an idea from somebody where you didn’t know that a player that you like was available.
“If you get an opportunity like that you do it.”
Manchester United are preparing to launch a £32.8million bid for Lazio midfielder Felipe Anderson, according to reports.
Following yesterday's qualification for the Champions League group stages United are ready to splash some more cash this summer.