How great is Messi?

The big problem for Messi is that his battle now is one against mythology. Novak Djokovic can blast the ball past Rafael Nadal on the French clay, while Rory McIlroy gets to look down the leaderboard and see the name of Tiger Woods. Trying to dribble around the memory of Diego Maradona is altogether trickier. Highlight reels and hagiographies are all that remain of Pele's career.
Former Barcelona team-mate Alexis Sanchez scored what many have since described as one of the greatest FA Cup final goals last weekend. But it bore little comparison to what was happening in Spain. Lionel Messi's Copa del Rey opener was a mini masterpiece. And yet, he'll be expecting to top that amazing achievement within the week. Such is the life of the world's greatest player.Lionel Messi just can't win in his battle to prove he's the greatest player of all time, writes Adam Bate.

For some, this is the chance to cap a legacy. Gigi Buffon, for example, is looking to finally add a Champions League winners' medal to his vast collection. For others, it's the opportunity to elevate their status. Neymar and Luis Suarez are after that breakthrough European triumph. But for the main man, the aim is the same. Do it again and do it better. But as the bar rises, the task gets tougher.