Argentina captain: Groin injury sidelines Leo Messi for three weeks, will miss World Cup qualifier

Last year he was out for a longer period of time and the team was okay.
On August 30, Messi traveled to Argentina to captain his national squad despite his ongoing groin problem, and against the advice of club doctors.
After sitting down on the pitch, the Barcelona medical team quickly came over to Messi and he was taken off.
Messi had traveled to Argentina to captain his national squad, despite his ongoing groin problemClub sources later said that Messi will be out of commission for at least three weeks, confirming that a groin injury he had suffered in late August had flared up.
The player will miss a Champions League match against Borussia Monchengladbach, as well as World Cup qualifiers against Peru and Paraguay.

Fuente: http://elpais.com/elpais/2016/09/22/inenglish/1474531845_258788.html