The CONMEBOL World Cup qualifying format is too tough on the players, with Thiago Silva keen for an alternative that can aid performance to be found. 

In the current system, South American teams play one another twice in a single group for a total of 18 matches. The top four qualify for the World Cup, with the fifth-placed team entering a play-off against a team from Asia. 

Given the scale of the continent and the fact many players ply their trade with European clubs, huge distances need to be traversed and matches can be played at significantly varying altitudes and temperatures in the space of just a few days. 

Brazil centre-back Silva believes a change is needed, with FIFA having reportedly met with some players to discuss what a new format could look like for the first 48-team World Cup in 2026. 

"It's not the 18 games, but the travelling we do. It's a lot of mileage compared to the Europeans, who play close together," Silva was quoted as saying by Globo Esporte. 

"There's a lot of wear and tear, in addition to the climate, which is totally different from what we are used to in Europe. 

"Me and the team had a hard time training in Teresopolis, which is colder than Rio de Janeiro [where Brazil played Chile on Thursday]. This can hinder performance. 

"If we could somehow find a balance in these trips, it would certainly facilitate our stay and our performances. 

"It's definitely unnecessary wear and tear, in my opinion." 

After defeating Chile 4-0 in the heat of Rio on Thursday, Brazil play their final qualifier against Bolivia at over 3,500 metres above sea level on Tuesday.