Marcelo back in training

By Agencies, Samara

Marcelo appears set to start for Brazil against Mexico after taking part in training in Samara on Sunday.

The left-back lasted just 10 minutes of Brazil's 2-0 Group E win over Serbia on Wednesday, when he was forced off with back spasms and replaced by Filipe Luis.

Team doctor Rodrigo Lasmar suggested a hotel mattress may have been the cause of the issue, but remained optimistic that Marcelo would recover in time to face Group F runners-up Mexico in the last 16 on Monday.

And those positive predictions were borne out as Marcelo joined the rest of his team-mates in practice on the pitch at Samara Arena.