Former Chelsea coach Ray Wilkins has cast doubt on their bid for Porto star Hulk.

Wilkins believes Hulk will struggle to fill the void left by Didier Drogba, now of Shanghai Shenhua.

"I was at Chelsea on a couple of occasions when we played against Hulk," Wilkins told the Fulham Chronicle. "He's not in the class of Drogba, but then not a lot of people are.

"He's going to be an extremely difficult person to replace."