McClaren told BBC Sport: “Everyone knows David’s attributes and he’s a big game player who can help us win in Estonia.
“We’ve a very important game in Estonia, we need to win it and it is a squad that can win it.”
He added: “Everybody’s professional and we’ve a squad that will blend together that will get us a result and I’m sure everyone will welcome David back.
“But all I’m thinking about is the next two games and we’re not looking beyond that. The priority is the next 10 days.
“Obviously his form has been excellent at Real Madrid and he can help us win in Estonia. Beyond that we’ll cross that bridge when we come to it.”