Chelsea have completed the signing of striker Andriy Shevchenko from AC Milan for a fee of around £30m.
The 29-year-old signed a four-year contract on Wednesday after agreeing personal terms and passing a medical.
"I am here for the challenge and the excitement of the Premier League," said the Ukraine captain.
It is not clear whether the fee surpasses the British transfer record of £30m which Manchester United paid Leeds for Rio Ferdinand in 2002.
Shevchenko, former European Footballer of the Year, added: "I am going from one big club to another and joining a team of champions.
"There is a right moment to join a football club and I think I have arrived here at the perfect time.
Had money been my motivation for coming, I would probably have stayed in Milan
Andriy Shevchenko
"The Champions League has to be a realistic target for next season but it is not just about the Champions League. Chelsea is going for their third Premiership as well and I like the club's mentality of wanting to win every game they play.
"I have followed Mr (Jose) Mourinho's career carefully for the last few years and have been hugely impressed with the way he manages.
"He puts team ethic before individual expression which is the way I believe great teams are created.
TOP FIVE ALL-TIME TRANSFERS
Zinedine Zidane; Juventus - Real Madrid £44m
Luis Figo; Barcelona - Real Madrid £37m
Hernan Crespo; Parma - Lazio £35.5m
Gianluigi Buffon; Parma - Juventus £32.6m
Christian Vieri; Lazio - Inter £31m
Andriy Shevchenko; AC Milan - Chelsea £30m
"Had money been my motivation for coming, I would probably have stayed in Milan.
"I am pleased that Chelsea managed to conclude everything before the World Cup - I can go to Germany with a clear mind and proud to be a Chelsea player."
A statement on AC Milan's website said: "AC Milan communicates it has ceded definitely the sporting rights of Andriy Shevchenko to Chelsea."