In January Andy Coulson, prime minister David Cameron's spokesman, stepped down amid speculation he had known about the hacking -- something he has always denied.

CNN: STORY HIGHLIGHTS

Drogba also said he was glad he stayed at Chelsea after being linked with both Milan clubs in the last transfer window amid speculation he would leave the English Premier League club.

BBC: Drogba: 2010 Africa's best chance

In January, amid growing speculation he knew about the hacking, Coulson resigned as Cameron's official spokesman.

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