Elite professional athletes are always looking for ways to improve their performances and the slighest alterations to lifestyle, training and diet can make all the difference.
In recent years, more and more footballers have begun drinking mate - a drink enjoyed by Pope Francis, no less - with the trend spreading across the Atlantic from South America to Europe.
There are a lot of health benefits associated with the drink, but its preparation and consumption is also a social event for those partaking in it.
So what exactly is it? Goal takes a look at mate, which footballers are fans and how to make it.