Chelsea have completed the signing of Samuel Eto'o from Anzhi Makhachkala on a one-year contract worth £4m a year.
The 32-year-old striker, who played under José Mourinho at Internazionale, told the Chelsea website: "I am very happy to be here but also anxious because I want to get playing as soon as possible.
"It wasn't a hard decision. I saw the qualities Chelsea have and I was very happy with José Mourinho before, so when the opportunity came, I was very happy to take it."
Eto'o became Chelsea's preferred target after their pursuit of Manchester United's Wayne Rooney foundered.
The Cameroon international is the second player to sign from Anzhi in as many days, as the previously big-spending Russian club slash their budget. The attacking midfielder Willian completed his move to Chelsea on Wednesday.