"Well once again Real Madrid are buying some wonderful gifted players, but you can only play with one ball though," Wilkins told Sky Sports.
"It will be an interesting season, I will watch with interest what happens there. Kaka made his decision. There is a language barrier if he came to London.
"We will add to our players for sure. And we will compete for the Premier League.
He added: "For a foreign player it is difficult to play in the Premier League, so are these players taking the comfortable route by opting to play for Real Madrid? I don't know, I'm just playing devil's advocate, but the Premier League is still the best in the world."