Moyes said: "Andy is probably about a month away. I know he is hoping to be back in two weeks but he needs a lot of practice."
Van der Meyde, who has also had two spells at Ajax as well as playing for FC Twente in his native Netherlands , has spoken of his annoyance at the timing of the injury.
The 25-year-old Netherlands winger said: "The injury has left me frustrated as it is a dream to be involved in the Premiership. This is a good chance to prove myself."
Everton's two other recruits during the transfer window -- defenders Matteo Ferrari and Nuno Valente - will be in the squad to face Dinamo Bucharest in the Uefa Cup tomorrow.
Valente, 31, is being tipped to become a success in the top flight, despite his baptism of fire in the 1-0 defeat against Portsmouth at the weekend. The £1.5m buy has vast experience having helped Porto win the Champions' League and the Uefa Cup.
His team-mate Joseph Yobo said: "Nuno trained with us once before Portsmouth and that wasn't even a long session. But he showed that he is a good player and it is good to have him.
"We have seen his qualities close up and we all know that he is a good player. As soon as he is match fit, he will add more to his game."
The Everton midfielder Phil Neville will be available for the first-round first leg in Romania after being suspended for the Portsmouth game. Lee Carsley (knee), Per Kroldrup (hernia), Alessandro Pistone (knee) and James Vaughan (knee) are all out of action with long-term injuries.
Van der Meyde's compatriot, the former Netherlands coach Dick Advocaat, has agreed to coach South Korea through to the 2006 World Cup finals, the Korea Football Association announced yesterday. Advocaat, who led the Netherlands to the Euro 2004 semi-finals, becomes the third Dutchman to take charge of South Korea in less than five years.
Guus Hiddink led South Korea to the semi-finals of the 2002 World Cup and then the KFA handed the reins over to Jo Bonfrere, who guided the team to their sixth consecutive finals in Germany next summer. But Bonfrere resigned last month after a series of stuttering performances.
"Dick Advocaat will lead the South Korean national team from 1 October," said the KFA media director You Young-cheul. Pim Verbeek, an assistant to Hiddink, will act as Advocaat's assistant.
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