Roger Federer, Lionel Messi and the pursuit of greatness

Two new books examine the athletes’ extraordinary careers and find they have much in common

The Barcelona Complex. By Simon Kuper. Penguin; 416 pages; $27. Published in Britain as “Barça”; Short Books; £20

The Master. By Christopher Clarey. Twelve; 432 pages; $30. John Murray; £20

AS TWO OF the most stylish and successful athletes of all time, Roger Federer and Lionel Messi naturally invite comparison. Mr Federer has won 20 men’s singles titles, a record…